It stopped when I uninstalled...
A reply from avast! support forum -
If it was me, I would uninstall avast!
and install M.S.E.
for a while.
There seems to be a minor error in their program at this time.
Several posts have been made that are all similar to yours, and some people have uninstalled for now -
If you have a paid version, you could always try the avast! forum for a solution, or for free version, remove it -
Thank You -