The main difference between and Autoruns64a.exe is the target processor architecture: Autoruns64.exe is compiled specifically for 64-bit Intel and AMD (x64) processors, while Autoruns64a.exe is compiled for 64-bit ARM (ARM64) processors. Running the wrong executable will result in poor performance through emulation or a total failure to launch.
Autoruns doesn't just read basic startup folders; it deep-dives into your computer's drivers, active codecs, and boot-execute images. These items operate directly alongside the Windows kernel. A native application ( autoruns64.exe on x64, or autoruns64a.exe on ARM64) ensures that the security descriptors and driver signatures it analyzes match the native architecture of the kernel environment. What Happens if You Run the Wrong Version?
: The 64-bit (x64) graphical interface version optimized for standard Intel and AMD systems. autoruns 64 vs autoruns 64a
Autoruns is a popular utility developed by Sysinternals, a renowned company in the field of Windows system utilities. It is used to monitor and manage the auto-start locations in Windows, allowing users to control what programs and services start automatically when the system boots up. The utility comes in various versions, including 32-bit and 64-bit editions, to support different Windows architectures. This report focuses on comparing two specific versions: Autoruns 64 and Autoruns 64a.
To check for unauthorized boot drivers and rootkits, Autoruns handles low-level interaction with system files. A mismatch in architecture will block the program from accurately validating digital signatures or checking third-party kernel extensions natively. 3. Execution Success The main difference between and Autoruns64a
Regardless of the version you choose, the tool's core purpose remains the same: it provides a comprehensive view of all programs, services, and drivers configured to start automatically on your system.
is the correct choice. If you aren't sure, running the generic autoruns.exe These items operate directly alongside the Windows kernel
| Executable | Architecture | Best Used On | Key Characteristics | | :--- | :--- | :--- | :--- | | autoruns.exe | 32-bit x86 | 32-bit Windows / Any | Most compatible; works on all Windows versions. Can view both 32-bit and 64-bit startup locations on a 64-bit OS via the WOW64 subsystem. | | autoruns64.exe | 64-bit x86 (x64) | Standard 64-bit Windows | Natively 64-bit; best performance on x64 systems. Fully accesses all 64-bit-specific registry and file system locations. | | autoruns64a.exe | 64-bit ARM (ARM64) | Windows on ARM devices | Natively 64-bit ARM; the best choice for ARM64 PCs for maximum performance and efficiency. Will not run on x64 systems. | | autorunsc.exe / autorunsc64.exe / autorunsc64a.exe | Various | Command Line (All) | The command-line versions of the above. Use " sc " ( autorunsc ) for scripting, reporting, and automation. |
When you download the Sysinternals Autoruns utility from Microsoft , the ZIP file contains several executables with similar names. The primary difference between and Autoruns 64a is the hardware architecture they are designed to support:
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 .
This article breaks down the differences between and autoruns64a , helping you select the appropriate tool for your machine. What is Autoruns?