Welcome Даниил Ершов,
Thank you for reaching out to Microsoft Q&A forum. I understand how frustrating it can be when your PC does not appear under your Microsoft account devices list.
This issue can occur for several reasons, such as temporary synchronization delays between your PC and Microsoft's registration service, or device registration/association problems (for example, the device may not be registering correctly with Microsoft’s device services).
You can try the workarounds steps to troubleshoot the issue:
Option 1: Basic troubleshooting steps
- Sign out and back into your Microsoft account on the PC (Settings > Accounts > Your info)
- Switch to a local account temporarily (via Settings > Accounts > Your info > "Sign in with a local account"), restart, then switch back to your Microsoft account—this forces re-registration
- Check for Windows updates
Option 2: Rename and restart PC
- Go to Settings > System > About > Rename this PC, enter a new name, restart, then check the devices page
Option 3: Try InPrivate/Incognito + clear cache
- Open Edge/Chrome in InPrivate/Incognito mode
- Sign in again at account.microsoft.com/devices
- If it works there, try to
- Clear cache/cookies for your account at browser
- Switch to the correct browser profile and try again
I really hope that the information I gave above was helpful to you. Please feel free to reply below and let me know if you have further concern on this matter.
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