Windows LogOn

Are you using administrator account or another account, there is a way to reset if you are using another account. You have to boot your p.c. in safe mode (using key F8) then login from administrator account, from compmgmt.msc  --- Local Users & Groups --- Users --- select your account then you can reset/change your user account password.

I am using an administrator account.
BTW, is the a method of creating a boot disk that will allow you to change your password?

Thanks to all. BTW, I rebooted my system and everything returned to normal. Go figure