Win 7 Reinstallation Question

[torre]

Sony laptop, Intel 2.0 ghz, 3GB RAM, 250GB HD, Win 7 HP, 3 yrs old


If I use a commercial software like Drive Scrubber to clean my HD, will a Win 7 Upgrade Discboot ? I want to eliminate any possible virus/malware.

Is there any advantage to using commercial software to format, or is the reinstall format listed in the tutorials as effective ?

My concern is that Kaspersky Internet Security 2012 (KIS) had corrupted data bases and after removal and reinstallation did not perform well. I could not download anything, e.g. CCleaner and received Certificate Error questions on certain websites. Also, I would like a fresh registry to insure previous programs like Chrome, Firefox, KIS, remnants are eliminated.

Thanks for your replies.

 

[seavixen32]

Please check this tutorial: http://www.sevenforums.com/tutorials/31402-clean-install-upgrade-windows-7-version.html

 

[gregrocker]

Just leave the Product Key blank during install then afterwards do the quick registry workaround in the tutorial posted by SeaVixen above to activate upgrade version on a cleaned HD.

Follow these steps to get a perfect reinstall and set it up best: Reinstalling Windows 7