method One:
1. Enter from the Control Panel, open My Computer, select click Control Panel, Find user account double click to enter.
2. In the User Account Settings window, select and click on the computer administrator account to open, select Change my password, then enter the old password, then the new password do not enter any symbols, and finally click Change Password to cancel the computer administrator password.
Method Two:
1. From the Computer Management interface settings, also enter from the control Panel, find the Administrative tools and open, and then open Computer Management in the administrative tools, and then in the list on the left of the pop-up window, select System Tools-Local Users and groups-users, you can see the computer computer User list on the right.
2. Then set to cancel the computer administrator to boot into the system password, in the user list of the system administrator, right-click on the dropdown to select the setting password, in the pop-up computer boot password settings do not enter the password, directly Click OK can be canceled.