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How to check if your Windows computer has 32-bit or 64-bit operating system

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When you install programs to your computer, you might face a situation where you have two versions of the same program: a 32-bit and a 64-bit version. If your operating system is 32-bit, all your other programs have to be 32-bit as well. In a 64-bit operating system, both versions work but typically the 64-bit version is the better option.

To find out which version your operating system is, do this:

  1. Open the Start menu, you can do it with pressing the windows icon, or the Win-key on your keyboard. Windows icon stands for the Start menu.
  2. Open This PC
  3. Choose the Computer tab and open Properties.
    Properties is the first of the options on the Computer tab.
  4. Under the System header you should see the System type row: you can see the type of your operating system. In the picture below, the system type is 64-bit operating system.
    Under System, look for the line that says System Type. In this example, the operating system is 64-bit.

If you need more information, see Microsoft’s instructions.

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