Hello AlexanderAKD, I'm Quinn, and I'm happy to help you.
If you can't access the parent account or contact the organization, let's create a new local admin user. Make sure you have backed up your important data to prevent accidental loss. Then, follow these steps:
- Open Settings.
- Go to Accounts > Family & other users.
- Click Add account under Other users.
- Select I don’t have this person’s sign-in information.
- Choose Add a user without a Microsoft account.
- Follow the prompts to create a new account.
Once done, make it an Administrator:
- Go back to Settings > Accounts > Family & other users.
- Find the new account and click on it.
- Select "Change account type".
- Choose "Administrator" and click OK.
Now, sign out and sign back in with the new account. This should give you full control, bypassing any previous restrictions.