Neither the delete key or "right click delete" work. I don't get the usual "are you sure" message. Well, now, sometimes I get it after several minutes. 1) It works as expected in admin account (I get the "are you sure" message). 2) It works as expected in command window. 3) "Copy and paste" and "cut and paste" work as expected. I've had this Sony pc for over a year. Bought it new with Windows 7 installed. I got an auto update last night. Any help would be appreciated.

Well, now I got about ten "are you sure" messages all at once. This happened after I plugged in a usb drive. I cancelled them all because if I said "yes" they would come back and say "file not found"... Anyway, now I'm back to not seeing any message and not able to delete any file.

It turns out that it was the Seagate Replica. I should have thought of this first. The only thing is that it started "without provocation". Once you start the uninstall it takes more than an hour to complete. If you ever buy this expect to do this about once every three months.