Today I hit a problem, where I had an older program which just wouldn’t install with User Account Control (UAC) enabled.   I tried disabling it via control panel, but it just wouldn’t take.   Then I found the following registry hack:

Under the following key:



Modify the DWORD called EnableLUA and change the value to 0.   You’ll immediately be warned that you need to restart the computer.

Give it a reboot and you’re good to go!