So my story is this, since some time one time per month more or less with a normal use of the computer my Windows decides it's time to corrupt a folder/file, whatever, pretty sad indeed, what it also does is somehow disable my autochk.exe and my chkdsk.exe so that I can't fix this problem, but ahahahah I keep in my dropbox this two exe's in a immaculate virgin state so when this corruption occurs I just copy paste them into System32 reboot, wait and TADA! It happens that today I got this stupid error on a folder: 0x80070091, trying to install Office and after googling it I tried the different approaches to the problem: Run admin explorer and delete the folder Take ownership of the folder over security menu Safe mode reboot Delete the file running Linux , with no success. It so happens that one of the approaches is to use chkdsk, which guess what, won't work on my computer so here I go to copy them again but guess what, the evil windows strikes back and doesn't let me paste them, the only user and admin of this machine. So HELP PLEASE!!!