Hi, I'm John! I will help you with this.
Can you please tell me when was the last time you were able to access that Outlook account? I ask because Microsoft may permanently close accounts that haven’t been used for over 2 years.
Also, please try searching for the account using these steps from Microsoft: https://support.microsoft.com/account-billing/forgotten-your-microsoft-account-username-b2049472-3b8f-27d3-61c6-67a668453f4c Click on "Search" and follow the instructions provided.
If you receive any error messages, such as “account doesn’t exist” or anything else, please let me know.
Also, regarding the message:
"Your PC is offline. Please sign in with the last password used on this PC."
This usually appears when the device has no internet connection at the login screen. Even if your Wi-Fi is working, the PC may not actually be connected.
Please check:
- Do you see the Wi-Fi icon at the bottom right of the login screen?
- Are you able to connect to your network from there before entering the password?
If the PC truly is offline, it will only accept the last password that was used on that device before it was repaired.
Click "Add comment" to let me know.
Regards,
John J.D.