In previous versions of Windows, you had to use an administrator account to do certain things, such as changing system settings or installing software. If you were logged on as a limited user, the Run as command eliminated the need to log off and then log back on as an administrator.
In this version of Windows, the Run as command has been changed to Run as administrator. You should rarely have to use the Run as administrator command because Windows will automatically prompt you for an administrator password when needed. Some older programs might still require you to use the Run as administrator command to eliminate the need to log off and then log back on.
Right-click the program icon or file that you want to open, and then click Run as administrator.
Select the administrator account that you want to use, and then type the password.
If you are logged on as a standard user, you can also use the Run as administrator command to run a program as another user, even if the user does not have an administrator account. To do this, click Run as administrator, and then select the user account. If you are logged on as an administrator, you will need to type runas.exe /user name in the Command Prompt window if you want to run a program as another user.