Instructions1. The first thing you want to do is check to see if you can get into the computer the easy way. Try signing on as a guest. If there is no "guest" option try typing in: guest then press enter. If this fails, no need to worry, just move on to the next step.
2. If this step fails then just Hit ctrl + alt + del. Under the username put the word "administrator" and put nothing under password. Most likely this will work, since there is a secret administrators account in every computer. If by any chance this does not work: continue to the next step...
3. If you are on the computer already and need a way to access the computer in the future without knowing the password try this: Go to the start menu, then to "control panel", click on "user accounts"...Make another account with your own password to it! This way you can sign in with your own user name and there's no need in knowing the password. The downside to this though is that the computer often displays all usernames once you sign on. Restart the computer and find out, on some computers it doesn't!
4.This last step is a bit drastic, but you can change the password on the computer given that you are already signed on. You don't have to know the password in order to change it. There is another article under resourses on the bottom of this article that can guide you on how to change the sign-on password on a computer without knowing it.
If the above 4 steps can still fail to work, it is better to try with a Windows password recovery tool, which can crack the Windows admin and user password instantly. Here I would like to recommend you Windows Password Unlocker, which can help you reset forgotten or lost Windows local administrator, domain administrator, and other user account password, which prevents you from accessing your computer. With this efficient Windows password recovery utility, you can enjoy quick access to your locked computer without formatting, no matter what your PC brand and Windows OS are. 100% recovery rate guaranteed.