Windows Vista i have problems deleting a folder.

first of all, Hi. im luis, new member.

ive tryed Mcafee and they didnt helped me,instead they sent me here.

ok, here is my prblem..

i re installed my Vista. and when i retreaved all the files from the folder of the previous installation, also know as "windows.old ", i tryed to delete the folder so itll give me back some memory.

i deleted all the files in it except for one folder that it asked me to skip because it couldnt be deleted.

when i tryed switching the security of the folder. this thing showed up



when i tryed looking for that in the folder, nothing was in the folder. it showed empty.

then some dude told me to try Tweak UI, and then suddenly the folder disappear with out me doing anything and i didnt ran the thing. and when i tryed,nothing happend. only the little weiting circle appeared.



so,what can i do to make sure the thing its gone?



thanks in advance.

Luis.

 

ive tryed this before..

the folder is gone but is it really?

cuz i changed its security to admin, before it was gone. could it be somewere else? or some virus that hidde itself?

 

thanks u guys.

u were of much help.

ill post a highjack this log later.
thanks.