How can I find out whether my install of Windows (specifically XP and Vista) is either 32 or 64 bit?
Additionally, how can I find out if my hardware will support a 64-bit operating system?
Answer
Windows Vista
If you have Windows Vista, there are two methods to determine whether you are running a 32-bit or a 64-bit version. If one does not work, try the other.
Method 1: View System window in Control Panel
- Click Start Collapse this imageExpand this image Start button , type system in the Start Search box, and then click system in the Programs list.
- The operating system is displayed as follows:
- For a 64-bit version operating system: 64-bit Operating System appears for the System type under System.
- For a 32-bit version operating system: 32-bit Operating System appears for the System type under System.
Method 2: View System Information window
- Click Start Collapse this imageExpand this image Start button , type system in the Start Search box, and then click System Information in the Programs list.
- When System Summary is selected in the navigation pane, the operating system is displayed as follows:
- For a 64-bit version operating system: x64-based PC appears for the System type under Item.
- For a 32-bit version operating system: x86-based PC appears for the System type under Item.
Windows XP
If you have Windows XP, there are two methods to determine whether you are running a 32-bit or a 64-bit version.
Method 1: System Manager
- Click Start, and then click Run.
- Type sysdm.cpl, and then click OK.
- Click the General tab. The operating system is displayed as follows:
- For a 64-bit version operating system: Windows XP Professional x64 Edition Version < Year> appears under System.
- For a 32-bit version operating system: Windows XP Professional Version appears under System. Note is a placeholder for a year.
Method 2: View System Information window
- Click Start, and then click Run.
- Type winmsd.exe, and then click OK.
- When System Summary is selected in the navigation pane, locate Processor under Item in the details pane. Note the value.
- If the value that corresponds to Processor starts with x86, the computer is running a 32-bit version of Windows.
- If the value that corresponds to Processor starts with ia64 or AMD64, the computer is running a 64-bit version of Windows.
As for hardware question, what hardware are you running?
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