How to quickly enable and disable Aero in Windows 7?

Create a batch file with the following content:

@echo off
sc interrogate uxsms | find "1062"
if %errorlevel%==0 goto :sc_start
sc stop uxsms
exit

:sc_start
sc start uxsms
exit

Executing it will alternatively turn Aero on and off. You can place it anywhere you like. AFAIK it does not need to be executed as Admin.

You can try:

c:\> sc stop uxsms

c:\> sc start uxsms