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I run Windows 7 Ultimate (RC) on a four year on a Pentium 4, 2.8 GHz machine with 1GB. It is totally responsive, and my steady state memory usage is around 512MB.

So I was wondering if anyone had experience of running Windows 7 acceptably on older hardware.

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I asked a similar question focusing on the amount of RAM required: superuser.com/questions/36238/… – Nick Josevski Sep 22 '09 at 5:33
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On The Windows Club, someone claims to have run Windows 7 on a circa-1997, 266MHz Pentium II with 96MB RAM and a 4MB video card, but it took 17 hours to install and booted in 17 minutes...

A Pentium III with 512 MB should already perform much better as claimed by NeoWin:

At Windows fan site Neowin.net, testers have claimed success with a 700MHz Pentium III ThinkPad with 256MB of RAM and a 600MHz Pentium III desktop with 512MB of RAM.

Check this link for more reports on less legacy hardware running Windows 7

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Ivo is alive! You have finally returned my friend. Weren't you on holiday/vacation? – Troggy♦ Sep 22 '09 at 5:35
That's one incredibly long vacation! I want one too :) – alex Sep 22 '09 at 5:55
This is where I was hoping the discussion would go. I have a 350MHz PII, with 90MB of RAM. Now I'll be tempted to try installing Win7 on it. – Phillip Ngan Sep 22 '09 at 5:57
I went to Italy (Rome!) for 2 weeks and before and after it some days off... Sadly not much internet so no superuser... but I'm still in the third place! – Ivo Flipse♦ Sep 22 '09 at 6:04
But you forfeited the Enthusiast or Fanatic badges :P – Joey Sep 22 '09 at 7:22
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up vote 1 down vote

I was running the Beta at almost-acceptable speed in a VBox VM on a host P4 2.4 with 1GB RAM. I'm sure it would have run fine outside the VM on the same hardware.

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