When you use the Avast Uninstall utility, it reboots you to Safe Mode does it's removal and reboot to regular mode.
You could simply have Booted into Safe Mode with Networking on your own, not remove Avcast, reboot to regular mode
and your problem would have been solved.
It is the booting into safe mode that fixed the problem.
Many people in the other post already report this way would not always solve the problem and even if luckily solve it this way then the problem will come back after awhile.
This problem has been explained to you. It's a Windows Problem. Post on their forum and ask them to fix it.
We've all done that. Complaining and trolling this forum isn't going to solve a Windows Problem.
End of topic.
I would not say this again since I said too many times but Avast supporter like you look like don't want to understand English:
1. Avast is the only antivirus software having this problem, if it is a Windows problem then other antivirus softwares would have the same problem. If you want to prove other antivirus would have same problem then show a link to prove it.
2. I already pointed out few times that that Microsoft link never mentioned Avast or antivirus, people reported in that Microsoft post don't not use Avast, it is another problem and can be solved in other ways. The Avast user who uses Avast and having taskbar related problem is caused by somehow Avast not compatible with Windows 10. I already point out the only permanent solution is to uninstall Avast, you guys bring up some possible temporary solution but then as many other users point out the problem will be back after awhile. If you want to prove me wrong then show us a link with Avast related content in it.