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How to Know If Your Windows 11 Uses ARM64 or x64

May 18, 2026

Windows 11 runs on two very different internal engines: the traditional x64 and the newer ARM64. Knowing which one you have is crucial. It affects which apps you can install, how your battery performs, and whether certain games or professional software (like VPNs, hardware drivers, or anti-cheat systems) will work at all. In this guide, we walk you through three effective ways to check if your PC is running ARM64 or x64.

Differences Between ARM64 and x64

x64 (Intel/AMD) uses traditional 64-bit processors from Intel and AMD. Most desktop PCs and gaming laptops use this architecture. The battery life of x64 laptops usually last 5–8 hours.

ARM64 is based on smartphone-style processor designs, and designed for ARM-based processors. It is commonly found in lightweight and battery-efficient laptops. The battery life of ARM64 devices typically last 12–18 hours.

Ways to Check What Engine Your PC is Running

Method 1. Check in Settings (Easiest)

This is perhaps the quickest method.

Press Windows + I to open Settings.

Click on System on the left-side navigation bar.

Scroll down and click About.

View the information in the System type field:

64-bit operating system, x64-based processor: You are running x64.

64-bit operating system, ARM-based processor: You are running ARM64.

Method 2. Use the System Information Tool (Most Detailed)

This classic Windows tool reveals not just the architecture, but also the specific hardware model.

Press Windows + R, type msinfo32, and press Enter.

In the window that opens, select the System Summary item in the left panel.

Find the line labeled Processor in the right panel and view the information:

x64, Intel Core, AMD Ryzen, or AMD Athlon: You have x64 architecture.

ARM, Snapdragon, Microsoft SQ1/SQ2/SQ3, or Rockchip: You have ARM64 architecture.

Method 3. Use the Command Line (No Mouse Needed)

This method is perfect for power users or when your UI is acting up.

Press Windows + S, type cmd, and choose Run as administrator.

Copy and paste the following command exactly:

echo %PROCESSOR_ARCHITECTURE%

Press Enter and view the information:

AMD64: Your system is x64.

ARM64: Your system is ARM64.

Final Thoughts

Checking whether your Windows 11 PC uses ARM64 or x64 only takes a minute. Once you know your system type, you can confidently download the correct apps and drivers for your PC.

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