/palm. You probably disable system restore too.
Yes, System Restore is useless and slows down my hard drive.
No you said it's completely useless if you know what you're doing(which is actually wrong in itself, but that aside), Then you said you would leave it on if it had a "remember" function, which demonstrates that you don't know what you're doing. hence a contradiction, and invalidated.
I always install the same programs, so it doesn't matter to me if it's on or not. What annoys me to no end is when it asks me if I want to launch a program that I've already installed like Diskeeper. Diskeeper needs to access the Management Console, so it needs permission through UAC. Another program is Origin, which gives a UAC prompt at startup. Steam doesn't require it, but some games need to be launched as Administrator to install completely the first time. It's a mess.
If I leave it on it annoys me and does nothing. If I turn it off it doesn't annoy me and still does nothing because I still launch the same ****ing programs. In Windows 8 you can't even turn it off, so this whole ****ing thread is invalidated and pointless.