Uninstaller as REVO and other, they actually doing the following:
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trying to run integrated uninstaller.exe from software that tries to uninstall
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trying to search files, folders and registry entries that are related to this software
In theory you should be able to successfully remove adware and toolbars, because they are not malware, and they have their own uininstall’s.
In practice, unlikely. Adware sets its value to the legit windows registry keys. It changes them.
Uninstaller that I know do not have the ability to write values to the registry, only referred to removing the key or value.
It will remove adware itself, but its modified values will remain to apply.
In other words, the un_installation will be uncompleted, user will still see the effects of these changed values. They will still geting the browser redirect, and if AV flags that redirected page, user will continue to receive URL:Mal warning pop-ups from his AV.