[CCleaner v6.09 wipes out Office executables!]

On 15/02/2023 at 00:15, nukecad said:

Had you actually run CCleaner v6.09? You don't say there whether you did or not.

In particular did you run the Registry Cleaner?
If you did run the Reg Cleaner then what version was/is your Office?

TBH as yesterday was the Microsoft Patch Tuesday updates then I'd be more inclined to suspect that it's something the Microsoft Update has done.
The Microsoft Updates will have installed when you rebooted after your shutdown.

On a longer shot - What Antivirus are you using?
There was a known issue with Avira and Bullguard AV's moving executables into a Windows temporary folder.
If you then ran any cleaner it would clear that temporary folder and the executables would stop working and have to be reinstalled.
None of the cleaning apps could fix that, only Avira/Bullguard could have fixed it.Aalthough we did find a way to stop it happening with CCleaner by 'excluding' that particular temporary folder.
It affected more than just Office though, and I haven't seen any reports of it happening for a while, but you never know.

If you could give us a few more details then things might become clearer as to what may have happened.
eg. what Windows version, what Office version, what AV if you have one installed, did you run the Registry Cleaner?

I answered all your questions on an email I sent to support. Are you in that loop? I assumed you were, you didn't answer. btw, the problem just happened again after auto-install of the latest version of CCleaner. In fact, it had happened multiple times previously. I didn't see the connection with CCleaner installation until lately.

[Health Check throws a DLL exception [see attached]]

Original Steps: open CCleaner...click Health Check...click Start 

Current Status: CNR    tried to replicate twice, before and after Restart

Appraisal: apparently this is a UFO.        CLOSE THE CASE

[Health Check throws a DLL exception [see attached]]

[CCleaner v6.09 wipes out Office executables!]

2/14/2023: The latest version of CCleaner deletes ALL Microsoft Office executables - Access, Word, etc. - GONE! 

v6.09 installed automatically either before or after an overnight shutdown. Now all the Office .exe files have disappeared. No other products were installed or uninstalled at this time - only CCleaner. I re-installed MS Office and everything works again. Nonetheless, pretty big screw-up, don't you agree?