Ccleaner crashes when starting ccleaner

I just aquired CCleaner professional, installed it successfully on my laptop Windows 10 64bit and whenever I want to run the program it crashes after I press the button run ccleaner. I already reinstalled it to the version 5.45.6611 - What to do now ?

Same to me.

Reported yesterday to support. no answer until now.

Are you running Kaspersky?

Does it still crash if you revert to 5.44 ?

https://filehippo.com/download_ccleaner/history/

Yesterday my CCleaner crashed on start-up of Windows 7. I uninstalled the program and installed the current version successfully, but when I started to run the Cleaner, it crashed again. Is it because of Windows 7?