How do you think the computer is 32-bit or 64-bit?
One. Let's take a look at WIn7 's viewing method first.
Quite simply, just right-click on the desktop--the computer--properties, you can see the red part of the picture below.
Two. WinXP view method, in fact, generally XP are 32-bit, 64-bit very few, view the method has several kinds.
Method One:
Right-click My Computer on the desktop "properties"
A window with the title "System Properties" is popped up to record whether your system is 32-bit or 64-bit information under the General tab. If your system is 64-bit, it will be clearly labeled "x64 Edition", or your system is 32-bit.
Method Two:
Click Start, and then click Run
In the Open box, type Winmsd.exe, and then click OK
Locate processor in the right pane under projects. Note the value.
If "Processor" corresponds to a value that starts with "x86," the computer is running a 32-bit version of the Windows operating system.
If "Processor" corresponds to a value that starts with "ia64," the computer is running a 64-bit version of the Windows operating system.
Or: In the System Summary right pane, locate the system type
If X86 PC is displayed, the computer is running a 32-bit version of the Windows operating system;
If you are an Itanium based system, the computer is running a 64-bit version of the Windows operating system.
Method Three:
Start > Run type "cmd" command
Then enter "SystemInfo" in the Command Prompt window and press ENTER
If your system is 64-bit, it is clearly labeled "x64 Edition" after the "OS name: Microsoft Windows XP Professional" line, or your system is 32-bit.