1Open the Start menu.
2Right-click "Computer." Choose "Manage" from the pop-up menu to open the Computer Management window.
3Click the arrow next to Local Users and Groups in the left pane.
4Double-click the "Users" folder.
5Click "Administrator" in the center list.
6Click "More Actions" in the Actions list. Choose "Properties" from the pop-up menu.
7Click the box next to "Account is Disabled" in the General tab to clear the check mark from the box. Click "Apply" followed by "OK" to activate the administrator account.
8Click "Administrator" in the center panel of the Computer Management window. Click "More actions" on the right side of the window, followed by "Set Password." Click "Proceed."
9Enter your password for the administrator account in both of the password fields. Click "OK."
10Open the Start menu. Click the arrow next to "Shut Down" and click "Log Out."
11Click "Administrator" and enter your administrator password to log in to the administrator account.
Command Prompt1Open the Start menu.
2Type "cmd" without quotation marks into the search bar at the bottom of the Start menu.
3Right-click "cmd.exe" in the list of search results and select "Run As Administrator."
4Type the phrase "net user administrator /active:yes" without the quotation marks at the command prompt. Press "Enter" to enable the administrator account.