I'm not ready to give up (yet). Maybe it's just a problem with Avast! notifying other programs that it is here, working and current? So, Windows Security center "says" that it cannot find any AV protection. Other software that I have reports that the AV software is "out of date". On the other hand, Avast! 5.0.418 says that my computer is fully protected. So, I'd be interested in hearing about any fix for this situation.
Windows Vista Home Premium 64-bit
Avast! Free Anti-virus 5.0.418
Its obvious from the semantics of the OP handle what his intentions were, Im sorry to hear you are having iisues thouhg. I myself have left Avast only to come back as ALL OTHERS seem to make my machine slower and slower every time I wake it up, or turn it on. Avast really seems to almost not be there while giving some GREAT protection.
Out of curiosity, where did you download from? ie, an offiste like CNet or various others.
Back to the problem. Have you tried a completly fresh installation. MAKE SURE TO HAVE ALL FILES BACKED UP. Sometimes in coming from other security providers, they leave traces of their software ALL OVER WINDOWS. I have only been able to garuntee my own suucess with Avast after using other products by a FRESH install.
This is not Avast's fault. It is porr removal app of the other products. Yes, Avast does leave some traces but not CORE changing components like MANY of the others, to include one named already in this thread. So the only way to get over this problem is freshly install your system.
Make sure you install service packs before installing Avast, I have them downloaded to a separate device for easy install. I myself encountered problems with Avast changing my Vista license if I did not update my servicepacks first. It was very frustrating and I thought I would warn you before spending a day like I did tracing other possibilities until Avast was all that was left (this refers to Vista before upgrading any service packs). Im sure others may argue you can repair all the damage/changes the switching from one to the next has done, but I only know ONE garunteed way. Also, you may be trying to install onn top of an already infected OS from other software failing you.
Now, if you go through this and you still are having the issue, what seemed to do the trick for me was to; (1) make sure the trial period has been activated and Avast updated; (2) disable your internet connection; (3) manually stop and restart the entire Avast package; (4) reboot PC; (5) re-enable internet connection, if all is well. If not only do so at your own risk, as it is recommended to NEVER connect to the internet without proper security software.
This fix worked for me and my Avast seems to be functioning JUST FINE NOW. Even after updating and I did a custom install wihtout the 'script schield'. Im sure that Vlk and the entire dev staff is on top of this trying to get it worked out for the next upgrade...
If anyone can suggest anything else before this person goes through reinstalling and updating Vista please submit...