In this article I’ll explain about clean desktop and laptop and how to safe our desktop and laptop from virus.

Details:

If your PC or laptop is running slow, or strange windows keep popping up as you browse about Windows, your PC may well have been infected by a virus, spyware or one of the myriad other types of malware that proliferate on the web.

We show you how to remove malware from a PC or laptop. How to clean up your PC after infection by a virus or spyware, or any of the other net nasty’s out there. We'll start, however, by giving you some quick and basic advice on prevention.

Remove a virus: Prevention:

Check now: do you have on your pc internet security internet security software that includes up to date firewall, antivirus and antispyware. That is the very least you need in your security arsenal. The easiest way to get such security on your PC is to purchase an internet security suite. Read our internet security software reviews and Group test: what's the best security software? For information on the best products.

Incidentally, if you do have up-to-date security software and you still think you are infected, simply running a scan is a good first step, but it is likely it won't solve the problem. Once installed any malware worth its salt will be able to disable your antivirus. (Security software to a greater or lesser degree prevents infection, but if your security software has already failed, it is unlikely alone to be able to solve the problem. Remember, no antivirus program can detect 100 percent of the millions of malware types and variants, particularly given the fact that literally thousands of new threats spring up each day.)

Remove a virus: enter Safe Mode:

First, do no harm. You need to disconnect your PC or laptop from the internet. Do so by unplugging any wired connections, and switching off Wi-Fi on your laptop. Now we're going to boot into Windows' Safe Mode. This is a version of Windows that runs without many of the programs and processes required by full Windows. It will allow you to use your PC without doing any more damage, and it should help you to find out what the problem is. Malware won't run in Safe Mode.

To boot into Windows Safe Mode in Windows 7, Windows Vista or Windows XP, first shut down your PC. Turn on your PC and as soon as you see anything on the screen press the F8 key repeatedly. You'll now see the Advanced Boot Options menu. Select Safe Mode with Networking and press Enter.

Windows 8 is a little different. Windows 8 PCs start up quickly so there's not enough time to press F8. For Windows 8, at the Windows 8 login screen, simply choose restart and hold down the Shift key. You will arrive at the windows with options to troubleshoot your system from which you can select to boot in Safe Mode.

Of course most people who need Safe Mode will already have a problem with their PC. If you are already logged in and can see only a black screen, hit CTRL, ALT, DEL to bring up the selection screen, and choose logout, restart. Then hold down the Shift key and you will be taken to the window via which you can choose Safe Mode.

Remove a virus: delete temporary files:

This step isn't critical, but it can help. Deleting temp files will speed up virus scanning, free disk space and may even delete malware. Select Start, All Programs (or just Programs), Accessories, System Tools, Disk Cleanup. And choose to delete temporary files.

 check more post on troubleshooting here