Hey ya’ll! i had avast! free antivirus 5 on my Windows 7 Home Premium 64bits (while it worked xD, sorry about this one). Anyway, every time i restart my machine, avast! just desappears! The only thing that remains is the desktop shortcut. Windows doesn´t even detect it ???
What’s happenig?
PS: i will give you any details you ask
Maybe a malware has deleted it?
Thanks for the sugestion, but i really don’t think so… i’ve checked it out with malwarebits and it really did detected something, it’s cleant, but still, it doesn’t work…
Can you attach the Malwarebytes’ log? Maybe others need it to help you.
Sorry i’ve deleted it… this problem started about 1 month ago, but, soon, i will make a new scan and post my log (sorry, i live in Portugal, right now it’s late here… i will only be back tomorrow :-X)
What problem started a month ago? With avast! ?
Yeah, and all i’ve been 1 month without even remember trying this forum xD…
Anyway, MBAM is perfoming a full scan on my system and it already found 2 more threats xD. Now i know the problem : last time i’ve usem MBAM, i’ve performed a quick scan… xD well soon i will update the post with some info. about the scan
I’ve cleaned all threats this time, soon i will say if avast! works this time… (hope it does xD)
No, it still doesn’t work…
It works fine for me. 
Further help
How to uninstall our software using aswClear:http://www.avast.com/uninstall-utility1.Download aswClear5.exe on your desktop
2.Start Windows in Safe Mode
3.Open (execute) the uninstall utility
4.If you installed avast! in a different folder than the default, browse for it. (Note: Be careful! The content of any folder you choose will be deleted!)
5.Click REMOVE
6.Restart your computer
Thanks, YoKenny, but that was my first atempt to fix this problem when it started, and it didn’t work :-[
Maybe the threats that you have now cleaned had affected avast and you need to uninstall and reinstall clean :
hhhhuuummm… maybe… i’ll say something about that soon