Look at “System type” to see if you’re running a 32-bit or 64-bit operating system. On Windows 7, head to Control Panel > System and Security > System. RELATED: How Do I Know if I'm Running 32-bit or 64-bit Windows?

If you see “32-bit operating system, 圆4-based processor,” your computer is running a 32-bit operating system but is capable of running a 64-bit operating system. If you see “64-bit operating system, 圆4-based processor,” your computer is running a 64-bit operating system. Look to the right of the “System type” entry. On Windows 10, head to Settings > System > About. If you’re not sure whether your computer has a 64-bit version of Windows-or even a 64-bit CPU-you can check from within Windows. How to Check Whether You’re Using 64-bit or 32-bit Windows Even NVIDIA has stopped working on its 32-bit graphics drivers, so you’ll need a 64-bit operating system to get new graphics drivers for NVIDIA hardware. ZBrush, a 3D modelling tool, discontinued its 32-bit version. For example, if you want to play the PC version of Grand Theft Auto V and many other PC games released in the last few years, you’ll need a 64-bit version of Windows. Given that limitation, it’s no surprise that many applications now require a 64-bit operating system. Modern demanding games and professional tools can easily use more than 2 GB of RAM.

In addition, 32-bit programs (even if they’re running on a 64-bit Windows operating system) can only access 2 GB of RAM each. RELATED: How to Upgrade or Replace Your PC's RAM If you want to actually use more than 4 GB of RAM-and you probably do-you’ll need a 64-bit version of Windows. Why You Should Install the 64-bit Editionģ2-bit versions of Windows are limited to 4 GB of RAM, which is a small amount these days when even budget PCs these days usually have 8 GB or more.

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