Hi and welcome to Bleeping Computer.
After Windows booted I consult you to remove those compressed patches immediately.
Open notepad (Start =>All Programs => Accessories => Notepad). Please copy the entire contents of the code box below. (To do this highlight the contents of the box, right click on it and select copy. Right-click in the open notepad and select Paste). Save it on the flashdrive as fixlist.txt
cmd: bootrec /FixMbr
NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to your operating system
Now please enter System Recovery Options
and press the Fix
button just once and wait.
The tool will make a log on the flashdrive (Fixlog.txt) please post it to your reply.
Then restart Windows and let it boot normally and let me how it went. In case the startup repair wanted to run let it run to completion.