Killing Flash didn't fix anything.
Yes. It says: svchost.exe 50% Host process for windows services...just like Task Manager says.
I had a similar problem with XP and cleared it by running system clean up and running the clean up system files option. remove everything it finds, shut down the computer (not re-start) then power it up again. I got that from a forum at the time that seems to have vanished otherwise I would have provided the link. Good luck