How can i tell if my computer can run a 64 bit OS?

[Handymann]

How can I tell whether or not my computer can run a 64 bit OS?

 

[DubbleClick]

Look up your cpu on the intel/amd website and see if it supports x64 instruction sets.

 

[markwp]

The os depends on the cpu. If the cpu model is a 64 bit unit, you are good to go.

To run a 64-bit version of Windows, your computer must have a 64-bit-capable processor. If you are unsure whether your processor is 64-bit-capable, do the following:

1. Open Performance Information and Tools by clicking the Start button, clicking Control Panel, clicking System and Maintenance, and then clicking Performance Information and Tools.

2. Click View and print details.

3. In the System section, you can see what type of operating system you're currently running under System type, and, under 64-bit capable, whether you can run a 64-bit version of Windows. (If your computer is already running a 64-bit version of Windows, you won't see the 64-bit capable listing.)

 

[zink1701]

Also if you have less than 4GB of ram dont bother with 64 bit, you will see no benefit whatsoever.