Win7 system boot password forgot how to do

The easiest way is: when booting to the welcome interface, the prompt box for entering the username and password appears. Press Ctrl+Alt+Delete to jump out of the account window, enter the username: administrator, and press Enter.
If the administrator account also has a password, then you can do this:
1, press F8
2 when the win7 system starts, select “safe mode with command line>
3, select“ Administrator”Bounce out“Command Prompt”window
4, add user: net user asd/add
5, l administrator: net localgroup administrators asd /add
6, restart, select asd to enter
7, the control panel ---- user account ----- Forgot the password of the user--delete the secret?
In addition to the above, there are two common cases of forgetting the win7 system password:
1. Forgot your password, but you are logged in to the system.
This situation is relatively simple to solve, first enter ”mmc.EXE” in the search box in the start menu, or press and hold Win+R, open the run window input “mmc.EXE”, click OK to enter Console. Open ”File”-”Add/Remove Snap-in", find ”Local Users and Groups in the Available Snap-in on the left, click ”Add”-”Done”, Click ”OK”. Expand the local users and groups in the console root node, select ”user”, right click on the right user name, > set password”, there is no need to enter the original password.
Second, forget the password, can not log in to the system.
1 find a PE disk to start the computer
2 After entering PE, go to c:windowssystem32
(1) Change the owner of Magnify.EXE and cmd.EXE to:administrators
(2) Change Magnify .exe and cmd.exe permissions for full control
(3) rename Magnify.EXE to Magnify.EXE1 rename cmd.exe to Magnify.EXE
3 change password
(1) reboot to windows 7
(2) Enable magnifying glass
(3) The rest is very simple, enter the command "net user” to view the user name, and then enter the command "net user username new password” (Activate the administrator account using net user administrator /active:yes) Finally, close the command prompt window, enter the new password you just set in the login password box, and see if you have successfully entered the system! Finally, don't forget to Previously moved, renamed files are changed back!