Dear @Jan Jeřábek,
Thank you for posting your question in the Microsoft Q&A forum.
We apologize for any inconvenience you may encounter when using our services/ products. Based on your description, kindly try these following steps:
Verify the child account on the PC
Go to Settings > Accounts > Verify (if present) and complete the prompts.
If you do not see “Verify”, open Microsoft Edge (while signed into the child’s Windows account) and go to: https://aka.ms/familyverify and complete verification. Troubleshooting Microsoft Family Safety - Microsoft Support
Confirm the child is a Standard user (not Administrator)
Family Safety can break or be bypassed if the child is an admin.
- Sign into the PC with the parent/admin account.
- Go to Settings > Accounts > Family & other users.
- Select the child account > Change account type > set to Standard user.
Ensure Windows can send the required diagnostic data
- On the child’s Windows account, open Settings.
- Go to Privacy & security > Diagnostics & feedback.
- Make sure diagnostic data level is set to Required. Set up Microsoft Family Safety - Microsoft Support
If it still shows “no devices”: send logs from the Family Safety app
- In the Family Safety app: Home icon > Help & Feedback > Send logs.
I sincerely hope you understand that the initial step I suggested may not have completely fixed the issue, as there may still be underlying causes that have not yet been identified. I am here to work closely with you, troubleshoot effectively, and explore every possible solution to ensure the best possible outcome.
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