User Account Control (UAC) can help prevent unauthorized changes to your computer.
UAC notifies you when changes are going to be made to your computer that require administrator-level permission. These types of changes can affect the security of your computer or can affect settings
for other people that use the computer. We recommend that you leave UAC on to help make
your computer secure.
To turn UAC on or off
On Windows 7: Click on the Start button, and then on Control Panel.
In the search box, type uac, and then click Change User Account Control settings.
Now perform one of the following task
To turn off UAC, move the slider to the Never notify position, and then click OK.
Administrator permission required If you’re prompted for an administrator password or confirmation,
type the password or provide confirmation. You will need to restart your computer for UAC to be turned off.
To turn on UAC, move the slider to choose when you want to be notified, and then click OK.
Administrator permission required If you’re prompted for an administrator password or
confirmation, type the password or provide confirmation.
from the start menu
click on run
navigate to the tool tab
and search for change UAC settings and click on launch and made the
changes you desire.