most functions with microsoft account not working

The symptoms point to an account or sync problem affecting multiple Microsoft services. Check these in order:

1. Verify the Microsoft account can still sign in.
   • If sign-in is failing, use the Microsoft account sign-in helper.
   • If the password was changed recently, update it everywhere the account is used.
   • If unusual sign-in activity was detected, the account may be temporarily blocked and must be unblocked before Outlook.com and other services work normally.
2. Check Outlook.com storage.
   • If Microsoft cloud storage is full, Outlook.com cannot send or receive email.
   • Messages sent while storage was full are bounced back to the sender and are unrecoverable.
3. Confirm the same Microsoft account is being used when checking devices.
   • A different alias or secondary email can make it appear that devices are missing.
   • On the Windows PC, check Settings > Accounts > Your info and confirm it shows the Microsoft email address, not a local account.
4. Restart OneDrive and check sync state.
   • If the OneDrive sync app icon is missing, OneDrive may not be running. Open it again from Start or Finder.
   • If Microsoft storage is exceeded, OneDrive cannot upload, edit, or sync new files.
   • If OneDrive still has issues, try unlinking and relinking the account.
5. If the problem is on mobile Outlook for Android, check app launch and power settings.
   • Turn off power-saving mode.
   • Disable power optimization for Authenticator or Company Portal.
   • Open Authenticator or Company Portal before opening Outlook.
6. If OneDrive still will not sign in or sync:
   • For personal accounts, use Contact Microsoft Support from the support flow.
   • For work or school accounts, contact the organization IT helpdesk or admin.

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