Long story short.. I got the fake FBI virus from a outdated java program and the virus literally destroyed my boot files. I had to reinstall windows and it pushed all my old files in windows.old which I scanned throughly in safe mode so I'm 100% safe now.
I right click and click properties on windows in windows.old and it shows 38.4 GB (size on disk) just sitting there doing nothing. My windows in my normal operating system uses only 21.5GB (size on disk) and I don't know why.
Just wondering if it is safe to delete the windows foldier in the windows.old foldier, from what I understand it does nothing and just eats GB. (I do not want to delete my users/ program files (and 86) yet).
I use windows 7 home premium.