How to Check if a Windows App Is Running Native Arm64 or Emulated

On a Windows on Arm PC, apps can run as native Arm64, as emulated x64/x86, or as a hybrid. Windows tells you exactly which — once you know where to look.

Method 1: Task Manager (30 seconds)

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Go to the Details tab.
3. Right-click any column header → Select columns → tick Architecture.
4. Read the new column while your apps are running.

What the values mean:

• ARM64 — fully native. Best performance and battery. ✓
• x64 / x86 — running through Prism emulation. Fine for most software, with some overhead.
• ARM64 (x64 compatible) — ARM64EC hybrid: the app’s core is native while some components remain emulated. Common in big apps mid-migration.

Method 2: PowerShell one-liner

For a quick inventory of everything currently running:

Get-Process | Select-Object Name, @{n='Arch';e={$_.StartInfo.EnvironmentVariables['PROCESSOR_ARCHITECTURE']}}

Or simpler — tasklist /v plus Task Manager for spot checks. The Task Manager column remains the most reliable view.

Method 3: Check before you install

You don’t have to install first. Look the app up in our database: every entry’s verdict line states whether it runs natively or under emulation, since which version, and when that was last verified. For apps that ship both builds, the store/installer usually picks the right one automatically — but a few vendors hide the Arm64 build behind a separate download link.

Why bother checking?

If an app you use heavily shows x64, it’s worth checking whether a native build exists — vendors often ship Arm64 quietly. A native switch can mean cooler, quieter, longer-lasting sessions. See what native buys you, or browse the best native apps by category.