Minecraft files (worlds, resource packs, etc.) become inexplicably, irreversibly encrypted

After reinstalling Minecraft Bedrock on my personal Windows 10 desktop PC last week, all files and folders within the com.mojang folder became inexplicably encrypted. The icons have a lock on them, and the "encrypt contents to secure data" button in advanced settings is checked and greyed out, with no way to deselect it. As a result, I'm unable to move/copy/paste/backup my worlds and other files.

When trying to move or copy/paste my world folders, I receive the error message "Your organization does not allow you to place this file here." Although this would seem like a Windows error, googling this error message returns results of other instances of users experiencing this specifically in relation to their Minecraft folders. (example: https://www.windowsphoneinfo.com/threads/your-organization-does-not-allow-you-to-place-this-file-here.771441/#Your_organization_does_not_allow_you_to_place_this_file_here)

No troubleshooting steps have worked for me. I can't uninstall/reinstall Minecraft as it will delete all my worlds, which is not an option. (For now, I can at least access them in-game.) All possible options to re-take ownership of the files and/or decrypt them don't work.