Do you know whether your windows vista or windows XP is a 32-bit or 64-bit operating system? Microsoft usually labels them as x86 and x64 respectively. Here are the various methods to check the operating system installed on your PC.
Update: If you have Windows 7, read this article on how to check for 32 bit or 64 bit Windows 7.
How to check whether windows vista installed on your PC is a 32-bit or 64-bit version (x86 or x64)?
Method 1:
- Click Start –> Run or Start Search.
- Type msinfo32.exe and then press Enter.
- Under “System Information“, find the value for the “System Type” item. For 32-bit editions of Windows vista, the value of the “System Type” item is x86-based PC. and for 64-bit editions, its value is x64-based PC.
Method 2:
- Click Start, type system in the “Start Search” box, and then click system in the “Programs” list.
- The operating system information appears as follows:
For a 64-bit version of windows vista operating system: 64-bit Operating System appears for the “System type” under “System”.
For a 32-bit version of windows vista operating system: 32-bit Operating System appears for the “System type” under “System”.
Method 3:
- Click Start, type system in the “Start Search” box, and then click System Information in the “Programs” list.
- The operating system appears as follows:
For a 64-bit version of vista operating system: x64-based PC appears for the “System type” under “Item“.
For a 32-bit version of windows vista: x86-based PC appears for the “System type” under “Item“.
How to check whether windows XP installed on your PC/system is a 32-bit or 64-bit version (x86 or x64)?
Method 1:
- Click Start, then click on Run or Start Search.
- Type msinfo32.exe and then press Enter key.
- Under “System Information“, review the value for the System Type item:
For 32-bit editions of Windows XP, the value of the “System Type” item is x86-based PC.
For 64-bit editions of Windows XP, the value of the “System Type” item is x64-based PC.
Method 2:
- Click Start, Run, type sysdm.cpl, and click OK.
- Click the General tab. The operating system information appears as follows:
For a 64-bit version operating system Microsoft Windows XP Professional x64 Edition Version appears under System.
For a 32-bit version operating system: Microsoft Windows XP Professional Version appears under System.
Method 3:
- Click Start, Run, type winmsd.exe, and click OK.
- In the details pane, locate Processor under Item. Note the value.
If the value that corresponds to “processor” starts with x86, the computer is running a 32-bit version of the Windows XP operating system.
If the value that corresponds to “processor” starts with ia64 or AMD64, the computer is running a 64-bit version of the Windows XP operating system.
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