Microsoft 365 apps will only open when opened as administrator

CCleaner for Windows CCleaner Windows Help Requests
1

I have been using CCleaner Professional for many years.

I never encountered this problem.

Another Microsoft 365 user advised me to delete the CCleaner app from my system and try again.

After I deleted CCleaner, the Microsoft 365 apps opened normally, no need to pen as administrator.

Anyone recognizes this problem?

2
2 hours ago, Jozef Alaers said: 
<div class="ipsQuote_contents ipsClearfix" data-gramm="false">
	<p>
		I have been using CCleaner Professional for many years.
	</p>

	<p>
		I never encountered this problem.
	</p>

	<p>
		Another Microsoft 365 user advised me to delete the CCleaner app from my system and try again.
	</p>

	<p>
		After I deleted CCleaner, the Microsoft 365 apps opened normally, no need to pen as administrator.
	</p>

	<p>
		Anyone recognizes this problem? 
	</p>

	<p>
		 
	</p>

	<p>
		 
	</p>
</div>

I can't reconstruct this on my pc. Are you using custom clean or health check? Are you using the registry section? Performance optimizer?

3

Also have a read here where CC is mentioned.

https://answers.microsoft.com/en-us/msoffice/forum/all/microsoft-office-will-only-open-if-run-as/402aef16-3373-4476-a82f-7244556f62f4

4

Are you putting MS 365 apps to 'sleep' with Performance Optimiser, and so then need Admin permission to re-awaken it?

Oops, Hazelnut already said that - see the link above.