64 Vs Autoruns 64a — Autoruns

In summary, if you're working with 32-bit applications on a 64-bit system and need to understand or troubleshoot their registry interactions, autoruns64a provides a more accurate view of their registry activity. For general use or when working primarily with 64-bit applications, autoruns64 is sufficient.

When you download the Sysinternals Autoruns suite, you will find several executable files in the folder. The choice between autoruns64.exe autoruns64a.exe depends entirely on your computer's processor architecture Microsoft Learn Key Differences autoruns64.exe : This is the standard 64-bit version designed for Intel or AMD autoruns 64 vs autoruns 64a

: The standard 32-bit (x86) version. It will work on most systems but is optimized for older 32-bit Windows installs. In summary, if you're working with 32-bit applications