Is there a web page available stating all the registry entries made by Avast! AIS?
I like to clean up my registry of all entries made for a “real” clean install of my licensed AIS6 or AIS5 for that matter (my subscription end somewhere in 2013).
I noticed entries remaining in Computer\HKEY_LOCAL_MACHINE\CurrentControlSet\Emun\Root\LEGACY_* being left behind.
Maybe I get a working CCC.exe again on the now on and off working Catalyst Control Center of my AMD vga-cards.
CraigB
2
Just look under the main software sections and systemwow64 if your using 64 bit
igor0
3
Those “legacy” keys are made by Windows itself - and Windows also removes them (after a while).
Deleted the Legacy-Keys succesfully with “regedt32.exe” before I made a clean install of version 6.
Then you can change the user-rights for these keys an delete them directly. 
I never saw this behavior… Legacy keys are kept forever in all my personal experiences…