That's absolutely false. In fact, in would most likely hurt performance by turning it off. Some programs actually require the page file to run properly no matter how much RAM you have installed. You could move the page file to be located on a separate physical hard drive than the one your Windows 7 is installed on for some better performance though.
System Manufacturer/Model Number Self-Built in July 2009 OS Windows 7 Ultimate x64 CPU Intel Q9550 2.83Ghz OC'd to 3.40Ghz Motherboard Gigabyte GA-EP45-UD3R rev. 1.1, F12 BIOS Memory 8GB G.Skill PI DDR2-800, 4-4-4-12 timings Graphics Card EVGA 1280MB Nvidia GeForce GTX570 Sound Card Realtek ALC899A 8 channel onboard audio Monitor(s) Displays 23" Acer x233H Screen Resolution 1920x1080
Keyboard ABS M1 Mechanical Mouse Logitech G9 Laser Mouse PSU Corsair 620HX modular Case Antec P182 Cooling stock Hard Drives Intel X25-M 80GB Gen 2 SSD
Western Digital 1TB Caviar Black, 32MB cache. WD1001FALS Internet Speed 15/2 cable modem Other Info Windows and Linux enthusiast. Logitech G35 Headset.
Computer type PC/Desktop System Manufacturer/Model Number Home Built Desktop By DataTech OS Windows 7 Ultimate X64 SP1 CPU Intel i5-2550K, Differing ~4.4-4.8GHz No built in GPU Motherboard ASUS P8Z68-V PRO/GEN3 Memory 16GB G.Skill Sniper 2133MHz 4x4GB Graphics Card ASUS ENGTX460 DirectCU/2DI/1GD5 GeForce GTX 460 Sound Card Onboard Realtek 5-1 Monitor(s) Displays Samsung P2570HD Screen Resolution 1920x1080
Keyboard Old, beat-up Dell USB From 10 yrs Ago Mouse Gigabyte m6900 wired PSU Corsair HX650W Case Inwin Dragon Rider Cooling Hyper 212 EVO w/two Noctua fans, push-pull, @1300 RPM Hard Drives Crucial M4 128GB for OS, 750GB Seagate MomentusXT for data, 500GB Seagate Constellation for storage Internet Speed 8-19 Mbs down, 3-4 Mbs up Comcast Cable Antivirus Norton Internet Security Browser IE 9, Opera when needed Other Info 4 case fans, LG BluRay-RE, ASUS DVD-RW, Mr. Fusion power generator with flux capacitor, 1.21 gigawatts.