Hi, I'm Elise, and I'd be happy to help with your issue.
It seems like you have something setting this registry entry, which basically just prevents access to the system properties. It's not particular malicious, just potential unwanted.
If this doesn't cause you any issues, you might just want to add an exclusion, which you can do by following these steps:
https://blog.malwarebytes.com/detections/pum-op...
Please let me know if you need any further assistance.
Kind Regards,
Elise
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.