Just got vent my frustration with Avast.
I just now recovering my main computer from the last Avast update. The first time a month ago it crash my system I went back one restore point. This time Avast software wanted to install another software update which let it do thinking maybe they fixed the problem. Again it caused DNS errors. This time I call Avast support 800 number. They wanted to access my computer which I agree as I felt it was their software that was causing the problem. After a few minutes said it was not their software and want $120 fix the problem which I declined.
Now here is what the tech did to me. He locked my Firefox software to where it would only access my home page; nothing else in Firefox. I rebooted my computer and it would only boot in safe mode and refused to access any of the back-up files. The tech even deleted my administrator password. I was lucky enough to have set a back-up administrator account which the tech apparently didn't see. I was able to restore everything but keep coming up memory crashes which for some reason Windows wasn't adjusting the disk memory cache. The system is still refusing to access my Windows 7 install DVD but I know why as I got put the DVD drive back in as I am using it on the shop computer.
It didn't even dawn on me until the next day what comment the tech made. It was when I told him I would straighten the system myself as I didn't have funds to space at the current time. Here what he said "Fix IF you can or call us back and pay the $120.00". It sounded like stories I have heard where a group would put software on your computer for free and then want money to remove it.
I am dumping Avast and going back to Avira. It has been just one bad experience for me and they have lost my trust. I am glad I do both daily and weekly backups to a large hard drive on a networked drive.