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I'm looking for the minimum CPU requirements for Windows 7. Specifically, I want to know if it requires SSE, SSE2, etc.

Wikipedia states that SSE2 was a requirement for Windows 8, but it doesn't say anything about Windoes 7.

I found this here:

The minimum requirements for Windows 7 are modest by today's standards:

  • 1 GHz or faster 32-bit (x86) or 64-bit (x64) processor
  • 1 GB RAM (32-bit) or 2 GB RAM (64-bit)
  • 16 GB available disk space (32-bit) or 20 GB (64-bit) -- just for the OS, not applications or data files
  • DirectX 9 graphics processor with Windows Display Driver Model (WDDM) 1.0 or higher
  • Internet access

Unfortunately, that doesn't say anything about specific CPU features required. Does anyone have the information?

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    There were not special requirements. If it could run Windows XP it ran Windows 7. SSE2 is only required for Windows 8.1 and greater.
    – Ramhound
    Oct 27 '15 at 10:50
  • @Ramhound: so not even SSE is needed? No other CPU features (TSC, CMPXCHG8, CMOV) are required?
    – cxxl
    Oct 27 '15 at 14:51
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    If your machine runs Windows XP it will run Windows 7. If you want specific CPU requirements look at Windows Vista's requirements. Windows 7 was targeted to allow upgrades from Windows XP machines though.
    – Ramhound
    Oct 27 '15 at 14:53

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