You want to free up as much of your memory as possible for gaming? I will show you how to VERY quickly turn off all the services you don't need for gaming. For detailed information on all of the services you will want to go here.

First browse to your C drive in windows explorer. Right click and select new text document.
Name it netstop.txt
After this rename it to netstop.bat
After this right click the file and select edit

Now we'll need to figure out what services we need to stop.

Hit Start --> Run --> Type: services.msc

Have it sort by status to show you what is currently running. You'll want to take a look at what's running and then reference blackvipers site to figure out what it means. He has on the second from the right a gaming rig profile. If it's disabled for his gaming rig profile then it should be fine to stop this service.

Now go back to your open window of netstop.bat

Every service you want to stop should be on its own line. I'll provide you with an example of what I'm choosing to stop. Yours will vary so please don't just copy and paste this into yours.

NET STOP "Automatic Updates"
NET STOP "Computer Browser"
NET STOP "Cryptographic Services"
NET STOP "Diskeeper"
NET STOP "Distributed Link Tracking Client"
NET STOP "DNS Client"
NET STOP "Error Reporting Service"
NET STOP "FireDaemon Service:FAH"
NET STOP "Help and Support"
NET STOP "IPSEC Services"
NET STOP "Messenger"
NET STOP "Network Connections"
NET STOP "Norton AntiVirus Auto Protect Service"
NET STOP "Print Spooler"
NET STOP "Protected Storage"
NET STOP "Remote Access Auto Connection Manager"
NET STOP "Secondary Logon"
NET STOP "Security Accounts Manager"
NET STOP "Server"
NET STOP "Shell Hardware Detection
NET STOP "System Event Notification"
NET STOP "System Restore Service"
NET STOP "Task Scheduler"
NET STOP "Themes"
NET STOP "Upload Manager"
NET STOP "Windows Management Instrumentation"
NET STOP "Windows Time"

After you put all of the services you'd like to stop in the file save it, close the editor and double click on netstop.bat it may take a couple minutes to take down all of these services if the list is rather long.

When you would like to start them back up you can either restart your system or create a netstart.bat and copy your contents from netstop.bat and everywhere that says STOP replace it with START.

A rather easy way to help you gain a bit of extra power ;) For me it's a quick way to shut folding and the AV off so i can hop into a game.