Whether you’re running 32-bit or 64-bit Windows makes a pretty big difference. Running a 64-bit version of Windows means having better security and the ability to use more memory in your system.
How to Check if Windows Is 32 Bits or 64 Bits In Windows Vista/Server 2008/R2
- Click on the Start Button.
- Type System in the Start Search box.
- Click System in the Programs list.
- In the System window, it will state either 32-bit Operating System or 64-bit Operating System.