Your Microsoft account password expires every 120 days. You’ll get an email from the IT Department in advance of this, and Windows will start notifying you about it around the same time. You definitely want to change your password as soon as possible if you’re getting these alerts; if you don’t, you could end up locked out of your account. There are a couple of ways you can do it, even if you don’t have access to your work computer.

To reset your Microsoft account password from your work computer, follow these steps:

1. Press the Ctrl, Alt, and Delete keys at the same time.
2. Choose the Change Password option.
3. Type your current password in the first box.
4. Type your new password in the second box, then again in the third box to confirm it.
5. Click the arrow button next to the last password box, and your password will be changed.

You can also change your password from the Microsoft 365 website.

1. Sign in to your Microsoft 365 account either at the Office Portal or the My Apps portal using your existing password.
2. Select your profile on the upper-right side of the page, then click View Account. 
3. In the My Account screen, locate the Password section and click Change Password.
4. Type your old password, then type your new password twice to confirm it.
5. Click Submit.