4 ms·

Yes, but machines with 64-bit CPUs are still being sold with 32-bit OSes for various reasons.

• saurik 9y ago
  One reason being "to run my old 32-bit software".
  • marcoperaza 9y ago
    You are mistaken. 32 bit software runs flawlessly on 64 bit Windows.
    • saurik 9y ago
      Oh, sorry: I meant 16-bit software (which does not run flawlessly on 64-bit Windows but does run on 32-bit Window).
      • TazeTSchnitzel 9y ago
        I assume you mean that it does not run at all. 64-bit Windows lacks NTVDM.