Wednesday 30 September 2015

Learn Java for Android Development: Java Syntax


In this tutorial series, you’ll become familiar with Java, the programming language used to develop Android applications. Our goal is to prepare those already familiar with one programming language, such as PHP or Objective-C, to become comfortable working with the Java programming language and dive into Android app development. In this specific tutorial, you’ll learn the basics of Java syntax, including how to create comments, define variables, craft conditional statements and iterate using loops. If you’re new to Java, or just looking to brush up on the details, then this is the tutorial series for you!

Tuesday 29 September 2015

SDK Manager

The Android SDK Manager separates the SDK tools, platforms, and other components into packages for easy access and management. You can also customize which sites the SDK Manager checks for new or updated SDK packages and add-on tools. For example, you can configure the SDK Manager to automatically check for updates and notify you when an installed SDK Tools package is updated. When you receive such a notification, you can then quickly decide whether to download the changes.

Learn Java for Android Development: Introduction to Java


In this tutorial series, you’ll become familiar with Java, the programming language used to develop Android applications. Our goal is to prepare those already familiar with one programming language, such as PHP or Objective-C, to become comfortable working with the Java programming language and dive into Android app development. In this tutorial, you’ll get a brief introduction to Java fundamentals, including object oriented programming, inheritance and more. If you’re new to Java, or just looking to brush up on the details, then this is the tutorial series for you!

Sunday 20 September 2015

How to extract the contents from an .ISO file without burning the .ISO to disc.


When Office products are downloaded from the Volume License Service Center they come down as .ISO files. .ISO is not a file format that Windows can open natively. An ISO file is an image of a CD/DVD. Typically you would be able to use a burning program like Nero, or ImgBurn, to then burn that ISO file directly to a disk.

How do I use .ISO files?
Once you have downloaded an .ISO file, there are several possible options you can use to install the software:

Saturday 19 September 2015

Increase Partition Size without Formatting

This tutorial can help computer users extend the size of disk partition including system partition and data partition with professional partition manager.

How to Partition A Hard Drive

There are many reasons to partition your hard drive: security, data redundancy, or simply for filing. And it's easier than you think. We show you how.


Shrink The C: Drive
2a. disk management

Friday 11 September 2015

How to download and install Android 4.4 kitkat on any android mobile


Android is an operating system which is commonly used by 10 million smartphones and tablets. There are many versions of the android which are named differently as Froyo, Cupcake, Honeycomb, Jellybean 4.2 and kitkat etc. In many Android mobile phones there exists a new version of Android games which can be downloaded from android market download. The newest android version is kitkat 4.4 which is very attractive with its new brand features in it. 

Asp.Net Project – Ticket Booking System Download

This Asp.Net Project relies on on-line ticket booking and reservation of seats in airline primarily this project will be used any wherever on on-line portal

Purpose of the TSN price ticket Booking project:

The system additionally provides a comprehensive mechanism of price ticket booking for any agency. TRANS SERVICE internet is intended to assist wide selection of travel agencies move and
supply service to the client. TRANS SERVICE internet comprehensive practicality helps the agencies expand their horizons within the field of providing service to the shoppers.

Tuesday 8 September 2015

Free JAVA Project Downloads

 JAVA, J2EE, J2ME Projects – Free Downloads with Source Code and Project Report 

Simple Java Mini Projects with Source Code Free Download 

Student Information System in JAVA 

Free .Net Project Downloads

ASP.Net Projects – Free Downloads with Source Code and Project Report 

C#.Net Projects – Free Downloads with Source Code and Project Report 

VB.Net Projects – Free Downloads with Source Code and Project Report 

Medical Shop Management System in VB.net 

.Net Desktop Applications - Final Year Projects


  1. MEDICAL PLUS PHARMACY MANAGEMENT 
  2. PATIENT SCHEDULING SYSTEM 
  3. BOOK BANK MANAGEMENT SYSTEM 
  4. ENCRYPTION AND DECRYPTION MANGEMENT FOR LAN 
  5. OPTIMIZED ROUTE FINDER 
  6. AUTOMATED ATTENDANCE REGISTER 
  7. RETAIL MARKETING 
  8. AUTOMATED BANKING SYSTEM 
  9. ANALOG TO DIGITAL VOICE DECODER 
  10. CONSUMER COMPLAINTS 

Projects on Hospital, Library, School, Salary, Hotel, Pharmacy, Student, Payroll, Employee Management System in all Technologies (Computer Project)


Find variety of of Management System Projects in many technologies such as ASP.Net, C#.Net, JAVA, VB.Net, VB, C, C#, JSP, PHP etc.

Sending SMS using .NET through Web Service Project


This article is about sending SMS using .NET through web service. With the help of this article, we can easily understand how to use web services in .NET, and also you will get some information about SMS, GPRS etc. This web service will help you give a notification if the service is unable to deliver.

Web Based Claims Processing System (Software Project)


In Web Based Claims Processing System (WCPS), the employee can fill the claim form online and submit it so that the form issent to CPD through Internet. At CPD, the form needs to be checked automatically by a program which will compute the amount that needs to be reimbursed to the employee for the treatment undertaken.

Cooking Recipe Portal in ASP.NET 2.0 C# Project


Cooking Recipe Portal is developed on ASP.NET 2.0 C# N-Tier application and SQL 2005 Database with stored procedure to contain and display recipes in a wide variety of categories, also allow your visitors to post their favorite recipes, rate recipe and add comment.

Sunday 7 June 2015

Routing

Routing is the process of selecting best paths in a network. In the past, the term routing was also used to mean forwarding network traffic among networks. However this latter function is much better described as simply forwarding. Routing is performed for many kinds of networks, including the telephone network (circuit switching), electronic data networks (such as the Internet), andtransportation networks. This article is concerned primarily with routing in electronic data networks using packet switching technology.

Friday 15 May 2015

What Is Routing? Routing Components

Routing is the act of moving information across an internetwork from a source to a destination. Along the way, at least one intermediate node typically is encountered. Routing is often contrasted with bridging, which might seem to accomplish precisely the same thing to the casual observer. The primary difference between the two is that bridging occurs at Layer 2 (the link layer) of the OSI reference model, whereas routing occurs at Layer 3 (the network layer). This distinction provides routing and bridging with different information to use in the process of moving information from source to destination, so the two functions accomplish their tasks in different ways.
The topic of routing has been covered in computer science literature for more than two decades, but routing achieved commercial popularity as late as the mid-1980s. The primary reason for this time lag is that networks in the 1970s were simple, homogeneous environments. Only relatively recently has large-scale internetworking become popular.

Sunday 12 April 2015

Automatic Sorting for Your Collections

The .NET Framework has two collections that will guarantee your items are always sorted whenever you process the collection. Here's how to choose between the two and how to control the sort order (including supporting duplicate entries).

Thursday 19 March 2015

What is Software Architecture?

Software application architecture is the process of defining a structured solution that meets all of the technical and operational requirements, while optimizing common quality attributes such as performance, security, and manageability. It involves a series of decisions based on a wide range of factors, and each of these decisions can have considerable impact on the quality, performance, maintainability, and overall success of the application.

Philippe Kruchten, Grady Booch, Kurt Bittner, and Rich Reitman derived and refined a definition of architecture based on work by Mary Shaw and David Garlan (Shaw and Garlan 1996). Their definition is:

Systems design

Systems design is the process of defining the architecture, components, modules, interfaces, and data for a system to satisfy specified requirements. Systems design could be seen as the application of systems theory to product development. There is some overlap with the disciplines of systems analysissystems architecture and systems engineering.

Monday 16 March 2015

250 Things an Architect should know


Architects newspaper posted a comment of Michael Sorkin, who is an American architectural critic and author of several hundred articles in a wide range of both professional and general publications. Also, a former professor at numerous schools of architecture including the Architectural Association, the Aarhus School of Architecture, and Cooper Union. The comment contains two hundred and fifty things an architect should know. Although its a long list, but we feel its very interesting to share it with you! At the very least, it might help you know what you are getting yourself into, or what you still need to know as an architect.

Office 2010 Professional Plus Product Key




Microsoft Office 2010 is a productivity suite which integrates office tools for personal and professional use. It includes a wide range of basic and advanced features that can help you to perform any task in a fast, efficient and productive way. Microsoft Office 2010 has come with renovated and new features for all the applications included in this package. Among Word, PowerPoint and Excel this pack integrates some other utilities such as Outlook, Access, Publisher or OneNote.
All the programs come with a renovated ribbon interface and a backstage view which are particularly of this version. However, one of the most interesting features of Microsoft Office 2010 is the online live collaboration feature, which allows the different users to work on the same document simultaneously.

Disable Password Lock Screen In Windows 8



Tutorial- Disable Windows 8 password lock screen with 4 easy steps using registry hack. Follow the easy steps to remove password lock screen quickly.

Windows 8 & 8.1 Product Keys







With Windows 8.1, you can start from the desktop you’ve always known or the modern Start screen with apps as Live Tiles. You can use touch, your mouse or the keyboard – whatever’s easier. And you can use the accessories you want because Windows is compatible with nearly all of them. Plus, you can search your PC, the web, the cloud and apps at the same time with Bing Smart Search. Just access the Search charm from the right side of your screen.

Windows 10 will deliver updates through your fellow PC users


Not fond of having to wait (and wait, and wait) while you download Windows updates from Microsoft's servers? You might not have to when Windows 10 arrives. The Verge has noticed that a leaked version of the operating system lets you grab updates from other computers, whether they're on your local network or online -- yes, it's a peer-to-peer network for patches.

How To Bypass Windows 8 Login Screen




If you are the only user log in in to your computer or the computer is safe from others, the log in screen whileturning on or after sleep might be annoying to you, and it consumes more time to get you back to the start screen. Bypassing the log in screen will be much useful for such users. This tutorial will cover how to bypass login screenin windows 8.

Simple Tweaks To Make Windows 8 Startup Faster


It's really frustrating for every user when the PC takes more time to startup. This is possibly for many reasons such as congested start up items, fragmented memory, virus infections..etc. More older PC, more software are installed and many of unnecessary apps begins to run when windows starts up. The proper optimization of windows 8 start up is the solution to reduce it. This tutorial covers the simple tweaks you can make use of to get a fast startup for your Windows 8 PC.

Thursday 12 March 2015

Evolution of Microprocessor – Types of Microprocessors

The microprocessor is nothing but the CPU and it is an essential component of the computer. It is a silicon chip that comprises millions of transistors and other electronic components that process millions of instructions per second. A Microprocessor is a versatile chip, that is combined with memory and special purpose chips and preprogrammed by a software. It accepts digital data as i/p and processes it according to the instructions stored in the memory.The microprocessor has many functions like functions of data storage, interact with various other devices and other time related functions. But, the main function is to send and receive the data to make the function of the computer well. This article discusses about the types and evolution of microprocessor.Please follow this link for Microprocessor History and Generation of Microprocessor

Know about Access Control Systems and Their Types with Features

Many access control systems use network for communication purpose and information is communicated through these networks.Access control systems are the electronic systems that are designed to control through a network and they should have an access to a network. Access Control System recognizes authenticates and authorizes entry of a person to enter into the premise thereby giving complete protection ensuring security with the system.


Example of an access control system :
A door may be unlocked with a swipe card, an RFID system or by the technology of bio metric system.

What is access control system?

Access control system provides security by giving flexible control over who is allowed to enter your premises. Access control system is one of the most common used system in electronic door control using a card or a magnetic stripe which can be accessed by swiping through a reader on the door. These access control systems are used for security purposes.

Electronics and Communication Engineering Projects and Ideas

RFID Based Project from Edgefx
RFID Based Project from Edgefx

  1. GSM Technology Based Patient Monitoring System
  2. Implementation of CDMA Technology System by Using VHDL Language
  3. GSM Technology Based Wireless Complete Body Scanning System by Using RF
  4. Mobile Communication based Home Automation Security System
  5. Monitoring of Traffic Light Lamp Blow System Done in Singapore
  6. Railway Track Pedestrian Crossing System without Using Staircase
  7. RFID Technology Based Industrial Warehouse Management System
  8. Digital Image Processing Technology Based Implementation of Bird Detection Algorithm
  9. Monitoring of Fully Centralized and Automatic Transport System
  10. Implementation and Comparative Analysis of Arma, Armax, Grey and Adaptive Grey Prediction Technique for Time Series Data

Wireless Communication Projects

Wireless communication can be defined as transfer of data or information between two systems without use of wires or cables. Wireless communication includes different technologies such as GSM, Bluetooth, IR, WI-FI, RF, etc. Here we are providing a list of communication based projects useful for all streams of engineering students.

White Paper On Wireless Communication through Zigbee Technology Pdf

Wireless communication technology usage is rapidly increasing nowadays in applications such as wireless sensor networks, industrial automation systems, home automation systems, remote control systems, medical care equipments, automation systems for agricultural use, and other applications. Among various communication technologies, Zigbee is an emerging and very promising international standards-based wireless-communication technology.
ZigBee technology is a wireless sensor network system which ensures remote monitoring and controlling of load parameters. Some of the characteristics like low cost, low power, low data rate, easy installation, low maintenance, multiple topologies, etc., makes this communication more suitable for a wide variety of applications compared to other short-range communication technologies.


Android Based Home Automation Systems and Its Applications

The ideas related to automation of tasks were in existence during the time of Greeks and after that as well, and during the industrial revolution automation systems were developed. Home automation system is nothing but a term used to describe the working of all household appliances. A centrally controlled LCD touchscreen panel is the best example of home automation system as it is used to control the appliances like air conditioners, heaters, security systems, video systems, audio systems, home theatre installations, kitchen appliances and lighting systems.
Home Automation Systems
Home Automation Systems

Best Embedded Systems Projects Ideas in 2015

Embedded Systems Projects is possibly the principal solitary group of projects, particularly with regard to electronics & electric students. These embedded projects are also the most admired group amid the electronics & electric students for a number of reasons. Amid countless reasons for picking projects based on embedded systems the most sensible reasons are – easiness in demonstration, lucrative, easy to comprehend and give explanation etc. Embedded system projects also proffer the most excellent interface potential for linking sensors, a variety of input and output gadgets, and a range of communications alternatives. Owing to all these reasons they are the most excellent option for projects, which involve linking to a number of other gadgets.

List of Top Embedded Systems Projects for engineering students:

1. Embedded Web Tech in Traffic Monitoring System

The principal objective of this project is to create software & hardware that can streamline audio data with the aid of USB 2.0. This is a XMOS & USB 2.0 based project design. With the aid of this project we have brought forward reality in the form of a complete new innovative product. This USB audio solution bring into play high speed USB 2.0 with 480mb/s of audio data which delivers 24 bit audio. Approximately 192 KHz of sample frequency is received along with 2-40 audio channels. The extremely supple XMOS machines permit you to custom your solution to the precise combination of interfaces and digital procedures for your finished product.

Top List of Android Projects Ideas for CSE, MCA and IT Engineering Students

This article provides a list of the Android projects for MCA and IT students. Almost all of the project ideas given in this article involve development of applications using Android OS. In this era of smart phone revolution,Android-based applications find applications in a wide variety of areas, and have become very popular. Due to the popularity of Android-based applications and their usage, many students are interested in building these applications for their academic projects. A list of Android-based applications is as follows:

1. Android-based Prescription Viewer Application

This project is an electronic-based prescription format for the doctors. The usage of this application is very simple for the doctors as it allows them to enter patient’s name, drugs’ details, and dosage. Once the details like patient’s postal address and area code are fed into the application, it enables the patient to acquire medicines directly from any pharmacy store. This system also provides a facility to send instructions to the patients.

Sunday 8 March 2015

Latest List of Android Projects for Computer Science and IT Engineering Students

 1. Android-based Prescription Viewer Application
This project is an electronic-based prescription format for the doctors. The usage of this application is very simple for the doctors as it allows them to enter patient’s name, drugs’ details, and dosage. Once the details like patient’s postal address and area code are fed into the application, it enables the patient to acquire medicines directly from any pharmacy store. This system also provides a facility to send instructions to the patients.

 

2. Children Tracking System Using Bluetooth MANET Composed of Android Mobile Terminals

With this application, parents can easily track the whereabouts of their children using Android mobiles. In this system, Android terminals communicate through a Bluetooth MANET. This application also facilitates exchange of information through wireless LAN.

 

3. Authentication Schemes for Session Passwords using Color and Images by Android

Many people often use text-based passwords for the security of the data stored in their mobiles. However, the use of text-based passwords is prone to dictionary attacks and eavesdropping. This project is proposed to develop high security by implementing passwords as colors and images.

Projects List for Professional IT Students

  1. XML-Based Accretion on Data Extraction
  2. Sheltered Crossing Out Scheme through Protected Data Forwarding in Cloud
  3. Online Job Portal with Exam
  4. Improving RFID System to Read the Tags Efficiently RFID Security
  5. Network Address Translator
  6. SMS Blocker Android Widget Design Document
  7. P-AODY: Extension of AODY for Partially Connected Ad hoc Networks
  8. Effective Payment Transaction and Security-Based Outsourcing Process
  9. Loan Automation System
  10. Intelligent Car Transportation System

CTI (computer-telephony integration) definition

CTI (computer-telephony integration), or sometimes simply "computer telephony," is the use of computers to manage telephone calls.

CTI (computer-telephony integration), or sometimes simply "computer telephony," is the use of computers to manage telephone calls. The term is used in describing the computerised services of call centers, such as those that direct your phone call to the right department at a business you're calling. It's also sometimes used to describe the ability to use your personal computer to initiate and manage phone calls (in which case you can think of your computer as your personal call center).

Introduction to Modulation and Different Types of Modulations

We are living in an era of communication wherein we can easily transfer any information (video, audio and other data) in the form of electrical signals to any other device or destined area. Although it is common in our perceptual experience that sending or receiving signals or data is simple, but it involves quite complex procedures, possibilities and scenarios within the communication systems.
Modulation plays a key role in communication system to encode information digitally in analog world. It is very important to modulate the signals before sending them to the receiver section for larger distance transfer, accurate data transfer and low-noise data reception.

Mini Projects Ideas for Engineering Students

Now-a-days many engineering students are trying to improve their knowledge and skills by creating new projects. Especially in electronics field, there is lot of chance to prove themselves as good electronics engineering student as they have to do lot of hard work in completing the project.
So, we are providing some list of mini electronics project ideas for final year engineering students. These mini projects are useful for B.Tech students from various streams like Electrical & Electronics Engineering (EEE), Electronics & Communication Engineering (ECE) and Electronics & Instrumentation Engineering (EIE).

Free Electronics Mini Projects Ideas for Engineering Students

Following is the list of some more mini electronics project ideas which may be developed by engineering students with their own knowledge:
    • Auditorium Control System Using IR
    • Attendance Monitoring System for Classroom
    • Automatic Mobile Recharge Station
    • Appliances Security Controller Using Power Line
    • Access Control System Using Microcontroller/Microprocessor
    • Automatic Sprinkler Control System
    • Anti Sleep Alarm

10 Good Electronics Mini Projects Ideas for ECE Students

Mini projects are playing very important role in getting good practical knowledge on the studied concepts in engineering. Electronics mini projects not just emphasize engineering theories but aid to unlock career prospects. There are many excellent electrical and electronics engineering mini projects for career progression, strengthen and challenge your awareness. This can be helpful not only for you, but also to others. These mini projects necessitate you to concentrate on all aspects of electrical and electronics engineering.
So, we are interested in listing some of the top electronics mini projects below for engineering students which a student can choose & design for his or her hobbyist needs. These mini projects are basically for electrical and electronics engineering students from a variety of streams such as EI (Electronics and Instrumentation), ECE (Electronics and Communication) and EEE (Electrical Engineering).

Computer Science Projects for College Students

  1. Data Warehousing and Data Mining Dictionary
  2. Fuzzy Keyword Search in Cloud Computing over Encrypted Data
  3. Web Based Online Blood Donation System
  4. Web Based Graphical Password Authentication System
  5. Identification and Matching of Robust-Face Name Graph for Movie Character
  6. Controlling of Topology in Ad hoc Networks by Using Cooperative Communications
  7. An SSL Back End Forwarding Scheme of Clusters Based On Web Servers
  8. Motion Extraction Techniques Based Identifying the Level of Perception Power from Video
  9. Approximate and Efficient Processing of Query in Peer-to-Peer Networks
  10. Web Based Bus Ticket Reservation System
  11. Chinese Input with Eye Tracking and Keyboard

Computer Science Project Ideas

  1. Storage Systems Based HBA Distributed Meta Data Management for large Cluster
  2. Image Analysis and Compression with PSNR and MSE Technique
  3. Implementation of Threshold Cryptography for MANET Based on Elliptic Curve Cryptography
  4. Image Processing for Resizing and Bilinear Filters
  5. Architecture of Distributed Database in Next Generation Mobile Networks for Global Roaming
  6. Recognition of Dynamic Pattern and Character Using Neural Networks
  7. Customer Relationship Management Based on Distributed Component Router
  8. Supply Chain Management System Based on Distributed Component Router
  9. Dynamic Logistics Management and Support Systems
  10. Multithreaded Socket Based Email Server
  11. Design and implementation of Mobile Banking
  12. JMX Based Managing and Monitoring the Clusters

Project Topics for Engineering Students

Project Topics for Engineering Students

  1. Voice based E-mail for the Blind
  2. A Railway Anti-Collision System with Auto-Track Changing and Phis Plate Removal Sensing
  3. Computer Folders ‘Security with a Bluetooth-Enabled Mobile Phone and Rinjdal Security Extension
  4. Speech Stress Analysis based Cheap Lie Detector for Loyalty Test
  5. Credit Card Reader with Face Recognition based on Webcam
  6. Recognition of Hand Movement for Paralytic Persons Based on a Neural Network
  7. Network Security Implementation Layer through Voice Biometric
  8. Agent Based Blocking and Response, Intrusion Detection using Signature
  9. Load Balancing of Artificial Intelligence Network using Ant Colony Optimization
  10. Authentication and Adaptive Security for DNS System
  11. Multicasting of Bandwidth Efficient Video in Multiradio Multicellular Wireless networks
  12. ADHOC Networks Based Bandwidth Estimation of IEEE 802.11

Latest List of Computer Science Projects for Engineering

This article is intended for those students who are earnestly seeking computer science projects during their course of studies. The topics listed below are exceptionally good ones as they are involved in different technologies over diverse areas like Android Projects, Dot Net projects, Java projects, and the projects related to hardware, and so on.
The List of the projects is as follows:
  1. Automated Robot for Military System (ARMS)
  2. Unique ID (UID) Management System Project
  3. Online Voting Using Bluetooth Enabled Mobile Phone
  4. Wi-Fi Based Mobile Quiz
  5. Inter-Operability of 802.11e and 802.11
  6. Semi-Supervised Learning using Graph Kernels
  7. Gram-Based Fuzzy Keyword Search over Encrypted Data in Cloud Computing
  8. Battery Optimizer for Android Mobile Devices
  9. Visual Tracking Using Spare Appearance Model

List of Computer Science Project Topics

Software engineering involves designing, development and maintenance of various application based softwares. Software engineering projects can be implemented on several tools such as Java, Dot net, Linux, Oracle, and so on.
Software project management accounts for creating various business-based applications meeting security challenges and performing activities in collaboration with the authorized corporations within short span of time. In addition to CSE engineering projects, this article also includes some of the information technology projects for the professional IT students.

List of Computer Science Project Topics

  1. Mitigating and Degradation of Congested Sensor Networks
  2. Sales Order Processing and Invoicing (SOPI)
  3. A Simple Generic Algorithm for Music Generation by Means of Algorithmic Information Theory

Sunday 15 February 2015

What is Recruitment?

“Recruitment is a process of discovering the potential candidates for a particular job”
Objectives of Recruitment
Þ To obtain an adequate pool of applicants
Þ To provide such information about the job that those who are unqualified will not apply
Types of Recruitment
Þ Internal Recruitment
Þ External Recruitment
Internal Recruitment
When organizations recruit candidate for new job by using firms own resources or hire employees form the current employees it is called internal recruitment. There are many types of hiring employee by using internal recruitment some major of them are given below…

Marketing Channels


DETAILED DESCRIPTION OF MEMBERS:
CHANNEL INTENSITY:
High Noon has its own distributor named “Dynalog” which consists of 46 distributors in the major cities of Pakistan like Lahore, Karachi, Islamabad, Faisalabad, Multan, Hyderabad, Sukkar, Peshawar and Gujranwala. These branches have over 200 employees which go to retailers to sell medicine. Due to bad management, poor channel communication, limited HR activities and other profit generate problem specifically recovery and expiry claims High Noon decided to close “Dynalog” and it’s not in working now.
On the other hand, Highnoon has made a contract with a third party distributor named “Premier” which has its network all over the Pakistan.

how to Register windows 7 ultimate for free


Windows 7 ultimate is latest operating system from Microsoft for Computer and laptops which is very wonderful for all those people who are using it. But the original copy of windows is normally its very costly to buy especially for student. Once your trial period is over of using windows as trial its headache to receive the same message again and again register the copy or your window on the start up of  each time you log on to your computer and after this your screen went black. To avoid this you have to quickly change the desktop background. 
Here is permanent solution for this problem just download the file below and run it as administrator your copy of windows 7 ultimate will be permanently activated. I hop you will enjoy this post.
  1. after download unzip the file
  2. now copy this folder
  3. my computer => C drive => windows folder => Paste this folder here.
  4. Now open the folder and run as administrator
  5. Click on Remove IT to give permission 
  6. It will just took one or two minute to activate windows permanently