Storm bought a computer in 2007 and has been updating it until Windows 10, where it won't upgrade because of her GPU. Now she's replaced her graphics card and Windows 10 finally installed! But she wants to know if she really has a 64-bit system. She looked at the specs and sees the phrase X64, which Leo says indicates 64-bit architecture. Upgrading also depends on how much RAM she has. So if she feels limited, then go to 64-bit in Windows 10.