Autoruns 64 Vs Autoruns 64a Jun 2026

Autoruns presents this information in a user-friendly interface, allowing users to easily sort, filter, and search for specific entries. Users can then disable or delete unwanted entries to improve system performance, troubleshoot issues, or remove malware.

Running an x64 tool on an ARM machine requires emulation, which can be slower. autoruns64a.exe runs natively on ARM, offering better speed and accuracy in detecting ARM-specific startup items 1.2.3. Summary Table: Autoruns 64 vs. Autoruns 64a Autoruns64.exe Autoruns64a.exe Architecture x64 (Intel/AMD) ARM64 (Qualcomm, etc.) Primary Use Conventional PCs/Laptops Modern Windows on ARM Devices Performance Native on x64, Emulated on ARM Native on ARM, Won't run on x64 Frequency Used 95% of the time Niche (ARM only) Which One Should You Run? For 99% of computers: Run autoruns64.exe . autoruns 64 vs autoruns 64a

When a 64-bit Intel/AMD binary runs under emulation on an ARM64 Windows machine, the operating system sometimes applies compatibility shims, registry redirection, or file system redirection to ensure the app doesn't crash. For a deep-system scanner like Autoruns, this redirection can result in or inaccurate readings of system paths. autoruns64a.exe interacts directly with the native ARM64 registry and system directories without any translation layers. 2. Performance and Memory Overhead autoruns64a

Conversely, running autoruns64.exe on an ARM-based Windows device usually works due to built-in Windows emulation layers. However, running an emulated diagnostic tool can cause it to misread deep registry paths, skip driver verification, or display inaccurate auto-start behavior. For an accurate diagnostic assessment, you must always match the utility to your hardware. How to Check Your CPU Architecture For 99% of computers: Run autoruns64

The "a" suffix in stands explicitly for ARM .

When you extract the official Microsoft Sysinternals Autoruns utility zip file, you are greeted by an alphabet soup of executable files. Alongside the classic autoruns.exe and its command-line sibling autorunsc.exe , you will see two 64-bit variations: and autoruns64a.exe .

The "" in the filename stands for ARM . This version is compiled natively for ARM64 processors.