Method 1 – Via Command Select “Start” and type “CMD“. Right-click “Command Prompt” then choose “Run as administrator“. If prompted, enter a username and password that grants admin rights to the computer. Type: net user administrator /active:yes Press “Enter“. Replace “yes” with “no” to disable the admin account on the welcome screen. Method 2 – From Admin Tools Hold the Windows Key while pressing “R” to bring up the Windows Run dialog box. Type “lusrmgr.msc“, then press “Enter“. Open “Users“. Select “Administrator“. Uncheck or check “Account is disabled” as desired. Select “OK“. Method 3 – From Registry Hold the Windows Key while pressing “R” to bring up the Windows Run dialog box. Type “regedit“, then press “Enter“. Navigate to the following: HKEY_LOCAL_MACHINE SOFTWARE Microsoft Windows NT CurrentVersion Winlogon SpecialAccounts UserList On the right side, right-click on “UserList” and select “New” > “DWORD Value“. Give the value a name of “Administrator“. Press the “Enter” k...