system
17
Please open regedit, go to HKLM\System\CurrentControlSet\Services\avast! Antivirus and delete the value called "Group". Then restart the computer and report if the change had any effect on the issue.
Ok I deleted the "group" value like you suggested, restart (using 4.7.981)
The both icons are back and function properly.
Yep. That seems to fix it.
Ok, I have to surrender to the facts, but it is still a fact that this issue happens (with me at least, at home and at work) even without Avast! installed. Well, I'll follow the clue listed here.