[Problems upgrading to CCleaner v5.58]

Thanks, I'll try that next time. THIS time, I decided to reboot and then delete the C:\Program Files\CCleaner folder. I tried to delete it before rebooting but it wouldn't let me delete a file or two. So as I was going to reboot, I got the message saying that "other people were logged in" and, since CCleaner runs in the background, that's why I couldn't delete the files. 

When I rebooted, then deleted the files and folder, I was able to install the new version!

Problem solved!

 

[Problems upgrading to CCleaner v5.58]

I've run into this on a half-dozen systems that I service for friends. When trying to run the ccsetup558.exe file, there will be an error saying that says, "Error opening file for writing: C:\Program Files\CCleaner\CCleaner64.exe" and choices for Abort, Retry and Ignore.

[CCleaner Pro "Lifetime" Licence - why has it expired?]

My receipt for CCleaner Professional Plus dated 1/7/2015 for $35.95 mentions NOTHING about a subscription.  I work on hundreds of customers computers per year and have been telling them about the fantastic deal that CCleaner Pro was because it was a one-time purchase - until recently!!

Instead of the denials, just come clean and say, Okay, we changed our business model and it became unsustainable to continue with the lifetime licenses.