Hi!
Since a long time when I use the RegCleaner (in CCleaner) always the same mistake: 'MMACEPrev.exe has stopped working' when I click on 'Basic Quality'.
I tried it with several installations; it only happens with the x64 versions of Vista and Win7 with ATI Cards => CCC.
See the attachment!
Many THX
Hi Bodyguard and welcome to Piriform.
I've found by researching that this fault can be a reasonably common one when selecting that particular option.
But I've also found a post on an AMD forum where the cause could be CCleaner removing a registry entry, and the fix obviously is to add this reg entry to CCleaners "Exclude" list ... CCleaner\Options\Exclude\Add Registry.
in using ccleaner to scan for registry isolates, a key appeared: c4.cccc.com, whose data is also the same. by "fixing" it, the problems surfaced. by adding the entry to the scan exclude list, the problems have not resurfaced for my machine.
LINK:
You don't say whether you fixed the problem, but if you have, look for a similar entry when you do a CCleaner "Issues" scan.
Hope that helps.