How to tell whether your computer is 32-bit or 64-bit?

Windows system

1. View via settings

   • Win10/Win11：
     Open 设置 > 系统 > 关于 > View in “Device Specifications” System type, it will indicate "64-bit operating system" or "32-bit operating system".

   • Win7/Win8：
     Right click 计算机(or “This PC”) > 属性, view it in "System Type".

2. via command prompt
   按 Win + R,enter cmd Press Enter and enter in the command prompt:

   echo %PROCESSOR_ARCHITECTURE%

   If displayed AMD64 Then it is 64 bits;x86 Then it is 32 bits.

   

3. Task manager (assisted judgment)

   • 按 Ctrl + Shift + Esc Open the task manager and enter 性能 tab page.

   • If it shows “x64” It is a 64-bit system,“x86” Then it is 32 bits.

macOS system

Apple's macOS is a 64-bit system (it has been fully transitioned to 64-bit since 10.7 Lion), so there is no need to distinguish.

Linux system

Open a terminal (Ctrl+Alt+T) and enter one of the following commands:

uname -m

或

arch

• If displayed x86_64 或 amd64 It is 64-bit.

• If displayed i386、i686 etc. is 32 bits.

Key differences

• 32-bit system: Supports up to 4GB of memory and cannot run 64-bit software.

• 64-bit system: Supports larger memory, compatible with 32/64-bit software, and has better performance.

If the computer was purchased in recent years and has more than 4GB of memory, it is basically a 64-bit system.