Hello Keru Singe,
The most likely cause is that your account's birthdate is set to a minor, which makes Windows treat it as a child no matter that you're the family organizer.
I'd check and fix that first:
- Sign in at https://account.microsoft.com > Your info and confirm the birthdate makes you an adult for your region; correct it if it's wrong.
- Then sign out of the account on the device and sign back in so the role refreshes (as the other advisor noted, the adult role is set on the Family Safety site, and signing out/in is what actually refreshes it on the device).
If you're still stuck in the loop afterward, you can temporarily quiet the enforcement on the device: open services.msc, stop Parental Controls, and stop WpcMonSvc in Task Manager > Services, then restart and try signing in again.
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