Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

What is the minimum memory you would allocate to a Windows 7 virtual machine and have it run "reasonably well?"

Taking the advice from Scott Hanselman's: VM Performance Checklist, I routinely started with 512 MB for WinXP installations and that seemed sufficient most of the time.

The Windows 7 VMs will be mostly used for routine software testing. No major resource requirements but I want it to be usable. What minimum memory setting would you choose for a basic installation?

share|improve this question
up vote 3 down vote accepted

1 GB should be fine for regular use, if you plan to run some heavy-weights in your virtual machine, increase the memory.

if you strip/tweak the heck out of 7 with vLite you may get away with 512 MB, but even then it may not run your application satisfactory.

share|improve this answer

I ran Windows 7 RC in a VM on my machine for a couple months. I had 1024MB of Ram dedicated. It worked fine.

share|improve this answer

I have a Windows 7 VM set up for remote debugging and I have 786MB allocated. It's a bit slow to start but once it's up and running I have no issues working on it.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.