questionswhat is the best low power, low noise windows…


You actually might have hit on the best answer - a Mac mini, booted into Windows.
Using Boot Camp, built into every modern Mac, you can install and boot into Windows natively (no emulation, no virtualisation).
Supported versions of Windows:
Microsoft Windows 8 (64-bit)
Microsoft Windows 8 Pro (64-bit)
Microsoft Windows 7 Home Premium (64-bit)
Microsoft Windows 7 Professional (64-bit)
Microsoft Windows 7 Ultimate (64-bit)
So, if you get yourself a Mac mini and a copy of 64bit Windows of your choice, you will end up with a low-cost, low-power-consuming, quiet little Windows machine to run your Quickbooks and Filemaker servers on.


Thanks for the answer! This is actually exactly what I did. It works great and uses about 1/4 the power of our old machine.


A lower-cost alternative would be this machine, which is fanless and draws very little power.