Determining If Your Computer is 32-Bit or 64-Bit

Reference Number: KB-01230
Last Modified: June 7, 2024

The information in this article applies to:

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How do I determine if I have a 32-bit or 64-bit system?


In this article, we will explain how to determine if your system is a 32-bit or 64-bit system. Please select the applicable option below to learn more:

To determine the system type for macOS

  1. Open the Apple menu and select About This Mac.

  2. Click the System Report button. If you do not see this button, click More Info, then scroll down and click the System Report button.

  3. On the Hardware panel, under the Hardware Overview heading, focus on the line item(s) directly below the Model Identifier.

    • If you're using a Mac with an Intel-based processor, take note of the Processor Name line item, then proceed to Step 4.

      Macbook Pro Hardware information on an Intel-based system

    • If you're using a Mac with an Apple silicon chip (e.g. M1, M2, etc.), you will see Model Number and Chip line items. All Apple silicon chips use 64-bit architecture.

      Hardware information on a Mac with an Apple Silicon chip

  4. If you're using a Mac with an Intel-based processor, you can use the chart below to identify your system type.

    32 and 64 bit processor chart

To determine the system type for Windows

  1. On the keyboard, hold down the Windows Key , then press the letter R.

  2. In the Run dialog that displays, type in msinfo32 and click OK.

    Microsoft Run dialog

  3. On the System Summary panel of the System Information dialog that displays, locate the System Type line item.

    Microsoft System Information dialog

    • An x64-based PC Value is a system that uses 64-bit architecture.
    • An x86-based PC Value is a system that uses 32-bit architecture.