How to speed up your computer

You don't have to shut down your computer for it to clear RAM
A simple reboot does the same thing
I'll add what you said though.
Thanks.

Actually, it takes a few seconds before the RAM gets cleared. On some computers, a Reboot isn't enough. The time it takes for RAM to get cleared is about 5 seconds to a minute, depending on what type of RAM. This was discovered by people recently when they managed to get an encryption key out of RAM by freezing it.

Of course, I'm a pretty crazy person and a simple reboot will do for most people. Paranoia for the win?