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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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closed as not constructive by 8088, Renan, Randolph West, KronoS, Canadian Luke Aug 14 '12 at 8:27

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.If this question can be reworded to fit the rules in the help center, please edit the question.

I asked a similar question focusing on the amount of RAM required:… – Nick Josevski Sep 22 '09 at 5:33
Windows 7, as I understand it, is designed to run on the same hardware as Windows XP. – user3463 Aug 14 '12 at 3:37
There is no reason Windows 7 wont run on any 80386 processor or higher. Obviously, RAM is the biggest factor. Swapping on extremely low memory machines and on a slow disk would give horrendous performance. – Keltari Apr 29 '14 at 20:54
up vote 5 down vote accepted

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, 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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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

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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