Autoruns 64 Vs Autoruns 64a _verified_

The primary difference between autoruns64.exe autoruns64a.exe processor architecture

Devices with ARM processors, like the Microsoft Surface Pro (ARM) or certain tablets. Understanding Autoruns64.exe autoruns 64 vs autoruns 64a

The Short Answer

• Autoruns64.exe → Native x64 binary
• Autoruns64a.exe → Runs ARM64 (for devices like Surface Pro X/11, MacBooks with M-series via Windows on ARM)

Practical note

If you run the wrong version:

Actionability: Allows users to disable (uncheck) or delete entries to optimize system performance or remove unwanted software. Which one should you use? The primary difference between autoruns64

Autoruns64a (with the "a"): This is the version for x64 processors—the AMD64 standard used by virtually every modern desktop, laptop, and server CPU from both AMD and Intel. When users download the Autoruns package on a typical Windows 10 or Windows 11 PC, autoruns64a.exe is the correct file to run. Autoruns64

Keep them updated:
Download fresh copies from live.sysinternals.com/autoruns64.exe and live.sysinternals.com/autoruns64a.exe. These are always the latest versions.

This is the version most users need. It is built specifically for the x86-64 architecture used by modern Intel and AMD processors.

• Output 8664 = x64 (AMD64)
• Output AA64 = ARM64