I'm sorry about the issue. Please try the following:
- On a working computer (or tablet or smartphone), please do the following steps in order to reset the computer login password (which is also called Microsoft account) for the problematic computer:
1. Click on the website below:
2. Then there, select the option "I forgot my password", then click on Next at the bottom.
3. Then in the first box, type in the email address as shown on the problematic computer.
4. Then in the second box, type in the characters as shown on the page.
5. Then click on Next at the bottom. Then follow the instructions there in order to reset your Microsoft account password
, then try it on the problematic computer.
- Once you are able to log in the computer, then click on Start -> Settings -> Accounts -> ... other users, then there, you can add another user using his email address.
- And/or if you'd like to, we can reset the problematic computer fresh, like brand-new, so you can set it up again with a new password ***** want. Please let me know the model of the problematic computer, and if it has windows 8 or 10, etc.
Please reply at the box below to continue troubleshooting. Thank you.