Autoruns 64 Vs Autoruns 64a __exclusive__ Jun 2026

For driver forensics, always use the native build on ARM64. Emulation won’t miss drivers, but performance is worse.

: Native 64-bit application for energy-efficient ARM processors (ARM64 architecture).

Using the precise binary for your processor architecture is critical for deep-system diagnostic tools. 1. Registry Mapping Accuracy

The core technical distinction lies in how applications interact with the system's registry and file system. A 64-bit version of Windows has separate sections of the registry for 32-bit and 64-bit applications. For example:

For most users, is the correct choice. If you attempt to run autoruns64a.exe on a standard Intel or AMD computer, you will likely encounter an error stating that it is "not a valid Win32 application". Conversely, if you are using a newer "Copilot+ PC" or an ARM-based tablet, you should choose the 64a variant for the best experience. Key Features of Autoruns autoruns 64 vs autoruns 64a

If it says "64-bit operating system, ARM-based processor," .

When you download the official Microsoft Sysinternals Autoruns toolkit , you are presented with a ZIP folder containing multiple executable files. The primary source of confusion for system administrators and power users is determining the difference between and autoruns64a.exe .

Choosing the correct version is straightforward. You need to identify the type of processor your Windows device is using.

When you download and extract the Autoruns.zip file from Microsoft, you'll see several executable files. Here is a quick breakdown of each. For driver forensics, always use the native build on ARM64

Are you executing this manually via the or deploying it remotely via the Command Line ( autorunsc ) ?

The "a" suffix in stands explicitly for ARM .

Both builds show the same categories: Logon, Explorer, Scheduled Tasks, Services, Drivers, Codecs, Boot Execute, Image Hijacks, etc. No hidden tabs. No ARM64‑specific extras.

Paul Jackson 26. Feb 12, 2021, 3:23 AM. Hello, The Sysinternals Autoruns utility includes multiple executable files: autoruns.exe, Microsoft Learn Autoruns - Sysinternals - Microsoft Learn Using the precise binary for your processor architecture

Running autoruns64.exe on an x64 operating system ensures the application operates with direct system memory access. It reads the system registry hives and native 64-bit system folders (such as System32 ) without tripping over Windows-on-Windows (WoW64) redirection mechanisms. When to Use It Diagnosing sluggish desktop boot cycles.

Autoruns is a utility developed by Sysinternals that provides detailed information about the programs and services that are set to run automatically on a Windows system. The utility comes in two versions for 64-bit systems: autoruns64 and autoruns64a . The primary difference between these two versions lies in how they display and handle registry entries and file paths.

Running code through an emulation layer requires CPU cycles to translate x64 instructions to ARM64 instructions. While modern Windows emulation is fast, autoruns64a.exe launches instantly and scans the massive list of autostart entries significantly faster because it executes directly on the ARM silicon.