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Bandizip on Windows 10 on ARM

Bandizip officially supports Windows 10 on ARM since v6.18, and it works natively on ARM64 CPU. As Bandizip's setup file supports x86/x64/ARM64 all together, you may go straight to the download page, get the file, and install it. If Bandizip is running on Windows 10 on ARM, a text "ARM64" is displayed in the title bar. Download Bandizip


Introduction to Windows 10 on ARM

Released by Microsoft in 2018, "Windows 10 on ARM" is Windows 10 OS that runs on ARM64 CPU.

ARM CPU is mainly used in mobile devices such as cell phones and tablet PCs. With support from Microsoft, however, ARM CPU is expected to be used in the future not only on laptops but also on desktops.

Microsoft announced the reasons for support on ARM CPU as follows:

  • Low-power consumption which makes Laptop's operating time longer.
  • Small size which makes devices smaller, or leaves more room to put a bigger battery.
  • LTE modem built in the CPU and available immediately.
  • Switchable immediately to normal mode from low-power standby mode.

x86 app emulation on Windows 10 on ARM

In addition to introducing Windows 10 on ARM, Microsoft also introduced Win32 emulation which is able to run existing x86 applications.


Since ARM is a completely different CPU from Intel's x86/x64, x86 applications are unable to run on ARM without an additional measure. Therefore Microsoft developed Win32 emulator that translate x86 code to ARM code and execute it in real-time.

Though this emulator works properly, the emulated x86 applications have some disadvantages compared with native ARM64 apps.

  • Because the emulator supports 32bit(x86) apps only, the apps are unable to use more than 2GB of memory.
  • Due to real-time emulation, running the emulated x86 apps make CPU computing speed slower 2 to 3 times compared to running the same apps compiled for ARM64.
  • Explorer shell extensions (DLL) built for x86 don't work properly.

Tested on ASUS NovaGo with Qualcomm's Snapdragon 835 CPU, the following shows a comparison of elapsed task times between Bandizip compiled for x86 and the other compiled for ARM64. The ARM64 app is 2 to 3 times faster than the x86 app. Asus NovaGo

speed comparison

2018/10/18, park