Program that REALLY deletes unused files from Windows 7

[sc2dave]

Besides the "temp files", recycle bin type of deleting, is there a program that can find any and all files that have never been used, and ,erase them? I know one guy, named Bold-Fortune, did this with XP and got his o.s. down to a few hundred files.

[HappyAndyK]

You can use tools like nLite to trim down your Windows installation to the bare essentials but that is not advisable as t could make your future Windows Updates fail and potenially cause other problems.

Stick with the safe options : Free up & increase hard disk space on Windows computer