Are you running Norton's System Works for example? One feature of that is Norton's Disk Doctor which, if you 'tick' the optional "Fix Errors" box will result in Chkdsk running at bootup. Just a thought !
This thread is now locked and can not be replied to.
How to get Windows 10 for free | How to install Windows 10: There is still a way to avoid paying…
1995-2015: How technology has changed the world in 20 years
Alex Chinneck’s giant ice cube Christmas tree at Kings Cross