HOW TO ENABLE WINDOWS 7 DEFAULT ADMINISTRATOR
Some time it happens that you may troubleshoot or do some maintenance work on your PC. But though you are working in administrator you may receive a message like " It requires administrator privilage, so please log in as administrator ". Here it requires to work in default administrator of windows 7 which is not enabled by default. You have to enable this default administrator . But enabling of this default administrator is seldom required. To enable this account follow these steps:
1.cmd prompt
2.Right click and select “Run as administrator”
3. And next to c:\ >type this command
" c:\> net user administrator /active:yes "
You receive a message 'command completed sucessfully'
4. Log out
Now you will be seeing the default administrator account. To disable this account put 'NO' in switch active
"c:\> net user administrator /active:no"