While updating to CCleaner v5.61, on each of my four attempts, I get this message:
Error opening file for writing:
C:\ProgramFiles\CCleaner\CCleaner64.exe
So, I had to abort each time. I run Windows 10 using the Chrome Browser.
This is the first time ever that I have had an issue updating (many years). This is the free version download for my personal use.
Thanks,
Tony