Is my Windows 32-bit or 64-bit?

How to tell if your computer is running 32-bit or 64-bit Windows:

Follow these steps to find out if your computer is running 32-bit or 64-bit Windows version, and what edition of Windows is on your computer.

If you have Windows 10:

  1. EITHER: Press <Windows>x then press the “y” key, OR Right-Click the Start button and click on “System”.
  2. The edition of windows and bit-width is displayed in the System section near the top of the window.

If you have Windows Vista or Windows 7:

  • Click the Start button, right-click Computer, and then click Properties.
    • If “64-bit Operating System” is listed next to System type, you’re running the 64-bit version of Windows Vista or Windows 7.
    • If “32-bit Operating System” is listed next to System type, you’re running the 32-bit version of Windows Vista or Windows 7.
  • The edition of Windows Vista or Windows 7 you’re running is displayed underWindows edition near the top of the window.

If you have Windows XP:

  • Click Start, right-click My Computer, and then click Properties.
    • If “x64 Edition” is listed under System, you’re running the 64-bit version of Windows XP.
    • If you don’t see “x64 Edition” listed under System, you’re running the 32-bit version of Windows XP.
  • The edition of Windows XP you’re running is displayed under System near the top of the window.

Meet the author

Dan grew up in New York State, and graduated from Queensbury High School in 1980. He majored in computer science at Harding University in Searcy, Arkansas, and received bachelor of science in 1984. He was a programmer at several insurance companies, and worked at Pioneer Hi-Bred for ten years. He and was a computer programmer for over 18 years, and started Iowa PC Services, Inc. in July of 2002. He is an active member at the Grandview Church of Christ in Des Moines, and enjoys woodworking and taking walks with his wife, Donna.

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