Hi,
I am Tanvi and I would be happy to assist you today!
While the Microsoft account login might be showing an old email, look closely at the login screen. Sometimes, there might be a small link or option to log in with a different account (e.g., "Sign in with a local account" or similar wording). If you see such an option, try logging in with your current Microsoft account username and password you use for other Microsoft services.
Please reset you password:
https://support.microsoft.com/en-us/account-bil...
Booting your laptop into Safe Mode with Networking can sometimes help troubleshoot login issues. This mode loads a minimal set of drivers and programs.
I hope this helps, do let me know if you have any other queries.
Good day