Restart your computer repeatedly tapping the f8 key to enter safe mode while the screen is black once in safe mode where the only things working will be your keyboard and mouse allowing you to attempt to repair your computer
Reboot the computer As the computer is booting repeatadly press the F8 key as the computer is booting
If done properly the user should get to a screen similar to the below screen. Select the option for Safe mode command prompt only Windows Advanced Options Menu
Please select an option: Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt Enable Boot Logging
Enable VGA mode
Last Known Good Configuration (your most recent settings that worked)
Directory Services Restore Mode (Windows domain controllers only)
Debugging Mode Start Windows Normally
Return to OS Choices Menu Use the up and down arrow keys to move the highlight to your choice select the safe mode option then run your antivirus if still cant get rid of the virus restart again Use the up and down arrow keys to move the highlight to your choice. select safe mode with networking download anti malware and microsoft security essentials http://www.microsoft.com/en-us/download/virus-malware.aspx?q=virus
anti virus and malware http://windows.microsoft.com/en-US/windows/products/security-essentials
once you have your computer running or you could do this in safe mode Press windows button and in the search type msconfig go to startup tab and uncheck those you dont want to start. Scroll to the bottom toolbar bottom of screen right click you can select task manager applications also processes you will see whats running on your computer and ticking over you might still have a virus If you see something running that you does not need to be running select end now then you might you might uninstall that particular program and some unnecessary programs you should also check leads from motherboard to hard drive for secure dust free connections Click start control panel administrative tools computer management disk management right Click on your drive select properties click tools you should see click check now click start tick in both boxes this will schedule to on restart do not have any input while chkdsk utility is in progress any might damage your computer also you might download and use this registry cleaner it is totally free to use http://download.cnet.com/ccleaner/
then defragment your hard drive adding more ram is the best way of speeding up a computer If you're not sure if a module is right for your system use the Crucial Memory Advisor tool
for a list of guaranteed compatible modules You should always ask for a guarantee on compatability before purchasing any ram and buy working pairs if possible. you might have to many programs running at the same time putting to much strain on the CPU Try uninstalling a few unnecessary programs. this should speed up your computer or you might use the system restore to restore your system to an earlier time click start all programs accessories system tools you should see your system restore option if it is a hardware issue the system restore might not work Manual restore points that you specify with the System
Configuration utility Installation restore points that occur before you install a program or a service
you can use the system checkpoints or the installation restore points to restore your computer's settings to a date when it operated correctly. This may also help determine the cause of the configuration error.
To perform a system restore, follow these steps:
, click Run
, type msconfig, and then click OK.
2.On the General
tab, click Launch System Restore
3.Select Restore my computer to an earlier time
, and then click Next
4.Calendar dates in bold are possible restore points. Click the most recent one to view system restore information.
5.Select a system checkpoint or an installation restore point, and then click Next
6.Close all other programs.
7.To start the system restore, click Next
8.Your computer restarts.
Repeat steps 1 through 8 until you fix your configuration issue. Hope it helps.