On your laptop press CTRL+Alt+Del and choose Change a password.

Passwords must meet the following minimum requirements:

Not contain the user’s account name or parts of the user’s full name that exceed two consecutive characters
Be at least 8 characters in length
Contain characters from three of the following four categories:
English uppercase characters (A through Z)
English lowercase characters (a through z)
Base 10 digits (0 through 9)
Non-alphabetic characters (for example, !, $, #, %)

It is not possible to reuse an old password.

• Input your current password
• Then input your new password
• And in the last field, type your new password once again.

Then press Submit/send.