Looks like the hard-coded Windows internal GUID is found in C:\Windows\SysWOW64\...

		deoxykev on Sept 13, 2021 \| parent \| context \| favorite \| on: Mozilla has defeated Microsoft’s default browser p... Looks like the hard-coded Windows internal GUID is found in C:\Windows\SysWOW64\Shell32.dll If you search for the string: "User Choice set via Windows User Experience", you'll find the GUID used to calculate the hash.