I had 16 updates and one optional. I tried to update twice. Once with all17 and once without optional. What a nightmare. Windows would not load and I could not use system restore. Said my drive was locked. I had to open a command prompt in recovery mode and execute the following.
Bootrec...
I have this problem also worse yet, it is crystal clear one minute and fuzzy the next. Ive searched the web for days and was hoping to find a fix here. From what I have read this is a Win 8.1 problem and needs to be patched by Microsoft.