Microsoft Windows Server 2003

Method 1
  1. Click Start-> Run, type sysdm.cpl and then click OK.
  2. Click the General tab. The operating system appears as follows:
  3. For a 64-bit version operating system: Microsoft Windows Server 2003 Enterprise x64 Edition appears under System.
  4. For a 32-bit version operating system: Microsoft Windows Server 2003 Enterprise Edition appears under System.

Method 2
  1. Click Start-> Run, type winmsd.exe and click OK.
  2. In the details pane locate Processor under Item. Check the value.
  3. If the value that corresponds to Processor, starts with x86, the computer is running a 32-bit edition/version of the Windows operating system.
  4. If the value that corresponds to Processor starts with EM64T or ia64, the computer is running a 64-bit edition/version of the Windows operating system.

Windows 7
  1. Open System by pressing the Start button.
  2. Right-clicking Computer and then clicking Properties.
  3. Under System , you can view the system type.
  4. I hope you will find this article very helpful.


Windows Vista


Method 1
  1. Click Start -> Run or Start Search.
  2. Type msinfo32.exe, press Enter key.
  3. In "System Information", check the value for the System Type item:
  4. For 32-bit editions of Windows, the value of the System Type item will be x86-based PC.
  5. For 64-bit editions of Windows, the value of the System Type item will be x64-based PC.

Method 2
  1. Click Start, type system in the "Start Search" box and then click system in the "Programs" list.
  2. The operating system appears as follows:
  3. For a 64-bit version operating system: 64-bit Operating System appears against "System type" under "System".
  4. For a 32-bit version operating system: 32-bit Operating System appears against "System type" under "System".

Method 3
  1. Click Start, type system in the "Start Search" box and then click System Information in the "Programs" list.
  2. The operating system appears as follows:
  3. For a 64-bit version operating system: x64-based PC appears against "System type" under "Item".
  4. For a 32-bit version operating system: x86-based PC appears against "System type" under "Item".


Microsoft Windows XP Professional

Method 1
  1. Click Start then click on Run or Start Search.
  2. Type msinfo32.exe and then press Enter key.
  3. In "System Information", check the value for the System Type item:
  4. For 32-bit editions of Windows, the value of the System Type item will be x86-based PC.
  5. For 64-bit editions of Windows, the value of the System Type item will be x64-based PC.

Method 2
  1. Click Start, click Run, type sysdm.cpl, and click OK.
  2. Click the General tab. The operating system appears as follows:
  3. For a 64-bit version operating system: Microsoft Windows XP Professional x64 Edition Version appears under System.
  4. For a 32-bit version operating system: Microsoft Windows XP Professional Version appears under System.

Method 3
  1. Click Start -> Run, type winmsd.exe and then click OK.
  2. In the details pane, locate Processor under Item. Check the value.
  3. If the value that corresponds to Processor, starts with x86, the computer is running a 32-bit edition/version of the Windows operating system.
  4. If the value that corresponds to Processor starts with ia64 or AMD64, the computer is running a 64-bit edition/version of the Windows operating system.