I have two computers running win 8 64 bit, an old but upgraded desktop (win 8 - won't upgrade to 8.1) and a new laptop (which has upgraded to Win 8.1 fine).
Both use the same win account to log in and as of this morning I can log in OK on the laptop but the same login details no longer work on the desktop.
anyone any ideas what to do - i have no problem to get rid of the microsoft login altogether as it doesn't seem to do anything in particular for me (except lock me out of my desktop that is).
I feel an apple coming on!

Bob t