Hello,
Could you please confirm whether you have successfully signed in to the Phone Link app on your Windows PC using your @hotmail.com account?
So, is the issue occurring with the Link to Windows app on your iPhone or Android device?
If the problem is with the 'Link to Windows' app on your smartphone,
Please remove your @hotmail.com account from the Accounts settings on your device.
- Go to your Mobile system settings > Accounts > remove your @hotmail.com account from the list.
- Then, uninstall and reinstall the "Link to Windows" app on your device.
- Next, add your Microsoft account to your device system settings and in the Link to Windows app.
See if you can sign in to the app with your Microsoft account.