Hello,
I have the CCleaner Prof with the key:
Name: José Humberto Pires Paiva
License Key: [key removed]
The problem also occurred in Version 1709 and continued in Version 1803.
When I install and run CCleaner, it happens that there are changes in Microsoft Edge.
The "news" that until then were given in Portuguese (Portugal), are given in English (United States). I click on the Custom Option on the right side of the screen and change to Portuguese (Portugal) and make SAVE. It only get to work while not stopping Microsoft Edge. When I start it again he returns to the "news" in English (United States).
I uninstalled and deleted all entries named "CCleaner" on Computer and everything worked fine. He accept SAVE after alteration to Portuguese (Portugal).
Greetings
José Humberto Paiva