microsoft

  • Windows 1.0

    x86 – 16-bit
  • Windows 2.0

    x86 – 16-bit
  • Windows 3.0

    x86 – 16-bit
  • Windows NT 4.0

    IA-32, DEC Alpha, MIPS, PowerPC
  • Windows 98

    IA-32
  • Windows XP

    IA-32
  • Windows Vista for Business use

    IA-32, x64
  • Windows Vista for Home use; released in fifty countries

    IA-32, x64
  • Windows 8

    IA-32, x64
  • Windows 7

    IA-32, x64