How to repair disk errors and bad sectors in Windows Xp,2000,NT
You can use Windows Disk Manager tool to check for file system errors and bad sectors on your hard disk.
To check your drives:
1- right click on drive and click Properties
2- click Tools tab and under Error-checking, click Check Now
3- in dialog box select the Automatically fix file system errors or/and Scan for and attempt recovery of bad sectors check box Automatically fix file system errors

Although, some disk errors are irrepairable. So what you have to do is either backup your files and repartition your harddrive (repartition is pretty much saying whipe out everything that is on the harddrive and reinstall the basic things which can be accomplished by putting your OS cd in, and then selecting partition from the selection screen.) Or you can try to deal with it, if its not a major one. But if you deal with it for too long, it will make the drive fail, and you will have to replace it. So for the best decision you probaly want to reformat/repartition.

Slow booting!!!
How To Repair Disk Errors And Bad Sectors

My computer went perfect a few days ago, but now it started to go so slow on booting progress and it uses 50-80 CPU useage while I got 3.2 GHz

I'm running windows Xp home and this problem started whenever I downloaded a new hardware and I tried to get on to a game and I got BSOD...Typically I go onto BIOS settings and edits soem things, and now it wont even boot my comp??

I download 2 video drivers, is that the problem?

-Christopher