Usually at least two times in a year. :(

It tired me very very. But in time windows beginning give different problems...

I delete program files and windows directories. After I install a clean windows.

>That's a bit extreme. How often do you do this?
>
>>I didn't get famous C0000005 error yet. But whenever my windows applications beginning madden I reinstall my Windows. This is the best way I know. :)
>>
>>