Hi,
It first started with explorer.exe crashing constantly... Everytime I would click start, it would crash etc... Then the first BSOD hit. It was a kernal something error and said a7 as a code. After the first BSOD, chkdsk ran and it fixed a whole bunch of errors. Then BSOD hit twice again...
bsod
chkdsk
crashing
error code
explorer
freezing
google chrome
i/ooperation
kernel
mcafee
non microsoft
recovery mode
registry
restore point
ultrabook
viruses
windows installer