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.
: Allows users to disable (uncheck) or delete entries to optimize system performance or remove unwanted software. Which one should you use?
Interestingly, if you run the 32-bit autoruns.exe on a 64-bit system, it is designed to detect your architecture and can automatically launch the 64-bit version for you. autoruns 64 vs autoruns 64a
Autoruns 64 vs Autoruns 64a: Choosing the Right Sysinternals Tool
If you attempt to open the ARM version on a standard Intel or AMD workstation, Windows will fail to interpret the binary instructions. You will typically receive a system popup saying or an error asserting that the file is not a valid Win32 application. Running autoruns64.exe on an ARM64 Device This is the version for x64 processors—the AMD64
Ignore the letter “a” at your own peril. On ARM64, using the emulated version might work, but it is like driving a race car with the parking brake on. For speed, accuracy, and forensic integrity, match the binary architecture to the CPU architecture.
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Paul Jackson 26. Feb 12, 2021, 3:23 AM. Hello, The Sysinternals Autoruns utility includes multiple executable files: autoruns.exe, Microsoft Learn Which autoruns executable to use? - Microsoft Q&A
Use this version by default if you are on a 64-bit OS. 2. Autoruns64a.exe: The ARM64 Version Which one should you use
At first glance, they appear redundant. Both are 64-bit executables. Both bear the same icon. Both perform the same core function. But beneath the surface lies a critical distinction related to Windows on Windows (WoW64), file system redirection, and processor architectures.