Had some Windows 10 machines get their (forced) update -- aniversary update, I think ... v14393 -- and CCleaner quit working. Updated CCleaner to v5.25 fixed it. Also, Defender had been magically resurrected and running after I had specifically & completely disabled them. Fortunately, the registry tweak I used before still worked on the updated Windows 10: Code: Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] "Windows Defender"=- [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run] "Windows Defender"=- [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] "WindowsDefender"=- [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender] "DisableAntiSpyware"=dword:00000001 (many thanks to TenForums for this tweak!) And why, WHY are we now being forced to swipe the screen up to logon... and with no permanent way to disable it now -- not even through Group Policy?!?