AnoneeMouse

Two machines do not have this key. Only ONE machine doesnt load/freezes.

I'll chime in and say I do not have the DisplayIM key in Computer\HKEY_CURRENT_USER\Software\Piriform\CCleaner or Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Piriform\CCleaner Performing the registry change earlier resolves the problem. I also believe that a patch (micro update) was pushed out, as I see (Cfg)LastUpdate has incremented

@hazelnut The post made my APMichael was great to point me in the right directed, which is why I posted as "Confirmed". I didnt give credit since the steps weren't detailed out as to what to do. I specifically wrote these steps out for others to follow. Regardless, this registry hack is just that and the ultimate problem needs to be addressed by Avast. For those that tried this registry fix, I'm pleased to hear that it works.

Confirmed fix - First, close CCleaner with Task Manager Next, go to REGEDIT, search for the key HKEY_LOCAL_MACHINE\SOFTWARE\Piriform\CCleaner Change (Cfg)HealthCheck from 1 to 0 Restart CCleaner You can now use CCleaner and it wont constantly "bong" at you.