I am unable to install CCleaner due to a seeming incompatibility with Bitdefender. Temporarily disabling the antivirus software didn't help, nor does adding ccsetup563.exe to the exclusion list. Here is the error from my system logs.
Faulting application name: ccsetup563.exe, version: 5.63.0.7540, time stamp: 0x5682fc79
Faulting module name: atcuf32.dll, version: 1.28.222.0, time stamp: 0x5d874f64
Exception code: 0xc0000005
Fault offset: 0x00002d8e
Faulting process id: 0x1760
Faulting application start time: 0x01d5a545f0a3f5f3
Faulting application path: D:\Downloads\ccsetup563.exe
Faulting module path: C:\Program Files\Bitdefender\Bitdefender Security\atcuf\264361302738009865\atcuf32.dll
Report Id: e1daa931-7dcb-4abb-b96b-1384eb4f47ff
Faulting package full name:
Faulting package-relative application ID:
