Windows is automatised to create “ADMINISTRATOR” account initially during the installation process

we use it only for the limited operations that are to be provides to the system administrator.Even though you have been using the account with administrative privileges, the tasks that have been performed may ask for a UAC confirmation.the elevated administrator account has been disabled in the windows 7,windows 8,windows 8.1 and windows vista .

following are some simple methods,which may help in overcoming such odds.

NOTE : use this account only for the purpose of troubleshooting and deactivate it once its done.
we recommend to secure it with a strong passwords

HOW TO ENABLE THE ADMINISTRATOR ACCOUNT USING COMMAND PROMPT

WINDOWS 7 USERS
1.start>programs>accessories>right click on command prompt and run as administrator

WINDOWS 8/8.1 USERS
1.search for CMD on the start screen and right click on the command prompt and select run as administrator

2.In the command prompt,type the following command and press enter to execute it.

net user administrator/active:yes

3.make sure that your command executed successfully.
4.log out to see the administrator account available in the login screen

HOW TO DISABLE THE BUILT-IN ADMINISTRATOR ACCOUNT USING COMMAND PROMPT

net user administrator /active:no

after this the administrator account will no longer appear on the login screen

HOW TO ENABLE THE ADMINISTRATOR ACCOUNT USING THE LOCAL USERS AND GROUP MANAGER

1. Press Windows key+R to open the Run dialog box
2.type lusrmgr.msc and press Enter. Local Users and Groups Manager will start.
3.In the Local Users and Groups Manager, click on Users in the left hand pane.
4. Then, in the work area on the right side, double click on Administrator.
5. In the following dialogue box, uncheck the Account is disabled option and click OK.
6. Administrator account will be available on the login screen.

To disable the Administrator account, check the “Account is disabled” option in step 5

NOTE :This is possible only if you are using a Professional or Enterprise editions of Windows 7 and Windows 8 or 8.1

HOW TO ENABLE OR DISABLE THE ADMINISTRATOR ACCOUNT USING THE LOCAL SECURITY POLICY EDITOR

1.Press Windows key+R to open the Run dialog box.
2.Type secpol.msc and press Enter. This will start the Local Security Policy Editor.
3.In the Local Security Policy Editor, navigate to Local Policies\Security Options.
4.In the work area on the right side, double click “Accounts: Administrator account status.”
5.In the following dialogue box, encircle Enable or Disable to respectively enable and disable the Administrator account.
6.Press OK. Log off to the login screen to see the Administrator account. Local Security Policy Editor is not available on home editions of Windows.