This message typically means that certain settings on your device are being controlled by a system administrator/domain, group policy, or some management software. If you're seeing this on a personal device, it could indicate a malware infection or a misconfiguration. You can perform the following activities:
- Run a full antivirus scan on your computer to ensure it's not infected with malware.
- Try using local group policy editor with 'gpedit.msc' command using Run
- If the issue started recently (as you mentioned) and you're unable to resolve it, you can try using System Restore to revert your system to a previous state where the problem didn't exist.