Use "Run as Administrator" all the time

To disable Admin Approval Mode

1. Click Start, click All Programs, click Accessories, click Run, type secpol.msc in the Open box, and then click OK.
2. If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue..
3. From the Local Security Settings console tree, double-click Local Policies, and then double-click Security Options.
4. Scroll down and double-click User Account Control: Run all administrators in Admin Approval Mode.
5. Select the Disabled option, and then click OK.
6. Close the Local Security Settings window

To disable UAC from prompting for credentials to install applications

1. Click Start, click All Programs, click Accessories, click Run, type secpol.msc in the Open text box, and then click OK.
2. From the Local Security Settings console tree, click Local Policies, and then Security Options.
3. Scroll down and double-click User Account Control: Detect application installations and prompt for elevation.
4. Select the Disabled option, and then click OK.
5. Close the Local Security Settings window.