My AV is Avast. In the last few runs of CCleaner's registry fixer, 4 registry items related to Avast keep coming up as invalid, but when I select 'Fix selected issues'. . . it doesn't "fix" them. Next time I do a scan, same items come up. See attached file.
Why does CCleaner keep bringing these up, but is unable to delete them. I also used regedit to try to delete them, even with Avast's shields disabled, and the system denied my request.
In the future only post images in standard acceptable image formats either: GIF, JPG/JPEG, PNG
Many people may be very leery of opening a .doc file since they can easily be infected.
Your .doc doesn't display the image embedded inside it.
_____________
The reason CCleaner's registry cleaner can't delete the so-called "invalid" Avast keys is because Avast self-protects itself, therefore Avast is doing its job. I'd recommend you right-click those found Avast "invalids" in the registry cleaner and choose the option Exclude.
I'm a firm believer that it's never a good idea to allow any registry cleaner to remove keys associated to currently installed antivirus software, and other security related software.
TIPS (but I have to agree about excluding your AV files!)-
With my ESET Smart Security v8 AV (Worked with my old KIS 2013/2014 AV too, and maybe with other AV's?)- I find that if I Analyze Everything (CCleaner, Defraggler (3pass defrag too (see the Big jump in read speed!)), Twice Before Cleaning/Defrag..., It allows All... without any issues, because it's now Trusted (I find that Security Suites, with a firewall are more persnickety...!).
I just ran the latest CCleaner Yesterday, the first Clean files Analyze took 9.5sec, and the second took 1.25sec, and then same faster results results with the Registry cleaner.
Since doing this, I never see the same files... coming up again, and my system is Much faster after Defrag (I Run as Admin, and temp show Hidden files on defrag Only).