Hi everyone, I'm running Windows 7 Home Prem SP1 up to date. I'm having the same/similar problems with this new version. Tried all of the recommended approaches and none of them worked. Luckily I make an incremental backup before making any changes to my system , so I finally went back to the prior version.
I',m also under the impression that a clean up tool that implies that it will remove Avast from your system, should do exactly that. If it does not then it should be spelled out in the write up for that tool. Just for the record, I use a program to monitor every program installation and after using that to do a "clean" uninstall, and then an offline full install, same results (blank white screen, numerous error popups and on and on and on again. For now I'll stay with the previous version.
If you have Windows Defender, it shuts down when there is another similar program installed, but the minute that I rebooted after making a complete uninstall of Avast, Defender came alive again, alerted me that updates were available. So I'm fairly certain that Avast was removed completely
Sure hope they fix this problem