Hi Richard,
Like Sibro has said you are on the public release of W11, here is a link about your release
December 13, 2022—KB5021255 (OS Build 22621.963) - Microsoft Support
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I cannot leave the insider program despite me trying. It says my profile is not registered. The program is very unstable.
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Hi Richard,
Like Sibro has said you are on the public release of W11, here is a link about your release
December 13, 2022—KB5021255 (OS Build 22621.963) - Microsoft Support
Open the registry, right click and delete the WindowsSelfHost key, it will be rebuilt after a restart.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft*WindowsSelfHost*
 and perform an in-place repair.
Mount the image in Explorer and run setup.exe