Avast Free - How to get rid of Legacy_ASW* registry entries after uninstall

[Vanguard_LH]

I uninstalled Avast Free (on a Windows 7 Home x64 host).  I ran the aswclear.exe cleanup tool.  Still there are remnant registry entries defining defunct Avast services under:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\

that are named:

Legacy_ASW*

To remove them manually means having to take ownership of a key, change permissions (to grant all), and refresh.  Then repeat on every subentry that appears.  The tree keeps expanding into ghost branches until I hit the end.  Then I have to back up to a prior branch and do the same with another branch under there.  I have to repeat this process while walking down into a newly exposed branch to get to end of one subbranch and repeat.  This can take 4 hours with all the legacy services that Avast's uninstaller left defined in the registry.

Is there a better cleanup tool or method to actually eliminate ALL defunct Avast registry entries?

[Asyn]

Follow instructions: https://www.avast.com/uninstall-utility (Run this tool for all prior installed Avast versions..!!)

[DavidR]

The registry Legacy keys are created by Windows not Avast as far as I can tell.

[alanb]

I ran the aswclear.exe cleanup tool.  Still there are remnant registry entries defining defunct Avast services under:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\

that are named:

Legacy_ASW*

There will be such entries: CurrentControlSet001 is the "last known good" configuration [retained by Windoze] and will not be immediately updated.  The OS will update it after 1 (or more) reboots.

Ignore it, along with CurrentControlSet002 , in your future searches.  CurrentControlSet is the only area to look at/check.