Necesswer

There's a clever trick using a Windows 7/8/10 install disk to swap the sticky keys executable for a command prompt allowing you to reset the password from the login screen: You boot the CD, choose the recovery options and then open the command prompt which you use to swap the executables. If your drive isn't supported natively then you will get the option to load drivers manually.

Removed the invalid login password on your computer,then create a multicharacter password.