windows 7 - What to do with a ton of extra memory?

I have 8gigs of RAM in this machine. I never really use more than say 4gigs (includes my virtual machines I use for dev testing).

What can I do with this extra space to best improve system performance?

Some guesses:

• Improve my disk performance by turning off the pagefile?


• Improve my disk performance by increasing the disk cache amount?


• Move temporary folders to a ramdisk?


• Somehow configure SuperFetch to cache more? (currently 1.5gigs)


• Any other suggestions??

This is on 64-bit Windows 7.

Answer

Let Windows manage the memory. It does a much better job than you can, even if you understand how it works, which you probably don't. A RAMDISK is almost always a poor use of memory. Disabling the pagefile will more often than not impair performance.