What a headache!! I had this same problem found here :
Re: Cant run system restore topic=57808.0
Unfortunately, when I came back from my trip, I tried to run a system restore before updating my computer and this got me into a mess.After days working these many pains
of undo and restore ... I found the related posts
that says: You need to disable the avast self-defense module and then run the system restore
I could not find how to disable self defense, Sooo
I ended up doing "undo restore" of the system in safe mode. and finally Avast is working again and updated OK.
Has anyone try system restore after this fix in version 5.0594? it looks good I wish I would have waited
Now I need help uninstalling PC Tools Firewall which I had disabled but now windows uninstaller cannot find the way to uninstall it. message reads: Programx86) files \PC tools missing unis000.msg. please correct or obtain a new copy of the problem>
Should I try to install/repair pctFW and then uninstall it? I don't want to mess up again.
I'm using: Windows 7 64 bit
avast! IS 5.0594 (firewall on)
MBAM full version (just installed today)
PC Tools firewall 6.0 plus (disable) { I upgraded (vista/avast 4 pro) to (windows 7/avast 5 pro) but could not get my license to work so got AIS I should have uninstall PC tools firewall before this }
Please I'd really apprecciate any help