Define the experience you will ship
Selecting ARM64 and producing an executable is one step in porting a product. Users download, install, launch, perform their work, update and uninstall it. Before changing the build, define the supported operating systems and devices, and the core workflows this release must complete.
For an image editor, displaying the main window is insufficient. Open representative material, run common filters, save it and reopen the output. This article covers product-level preparation for Windows on Arm rather than a complete build tutorial; follow the documentation for your language, framework and packaging system.
Inventory dependencies before making changes
Work outward from the main executable: shared libraries, plugins, helper tools, runtimes, installer components and the updater all count. Record each component's version, source, available architectures and source-code availability. Contact the maintainer of an irreplaceable dependency early, before discovering that it blocks a nearly completed port.
Locate assembly code, processor-specific optimizations and architecture detection. Searching installer filenames is not enough because some components load only when a feature is used. Exercise real functions and include the libraries and resources they actually require. This establishes the practical scope of the work.
Choose a migration path around dependencies
Projects with suitable ARM64 dependencies can build an ARM64 edition using their toolchain's guidance. For some Windows 11 applications that still depend on x64 components, Microsoft offers Arm64EC as an incremental route, allowing corresponding native code to cooperate with emulated x64 code in one process.
Arm64EC and conventional ARM64 are not interchangeable build labels. Libraries and plugins must obey their respective interoperability rules. Consider the actual dependency tree, target operating system and maintenance effort, and describe any remaining emulated components accurately instead of hiding them behind a native label.
Validate drivers and installation separately
Application emulation does not establish driver compatibility. Microsoft's FAQ states that kernel-mode drivers and user-mode print drivers require native ARM64 builds. Products with drivers also need suitable installation, signing and deployment procedures. A running graphical interface is not proof that the driver works.
Test first installation on a clean target system, then upgrades, configuration preservation and removal. Check whether the download page makes architecture selection clear, whether updates deliver the correct package and whether missing dependencies produce actionable guidance. These issues often matter more to users than a build failure.
Combine automation with target-device testing
Automated checks can inspect architecture, versions, dependencies and basic behavior. The target ARM environment should validate installation and core tasks. Microsoft documents physical devices and ARM64 virtual machines for testing, but USB, audiovisual hardware, sleep and driver behavior still require the relevant physical conditions.
Record the system version, hardware, application build and steps. Performance comparisons should use matching inputs and comparable environments while also checking output correctness. Faster launch times and screenshots cannot replace completed tasks. When shared components change, cover affected working paths and recovery from failures.
Publish a clear support boundary
Release clear architecture choices, installation instructions, known limitations and change notes. Distinguish functions tested on specific equipment from code that has only compiled, and identify external dependencies. Preserve a recoverable previous version and a useful feedback route so a failed upgrade does not leave users stranded.
Keep ARM builds, installation checks and real workflows in the ongoing release process. Dependency updates can change support conditions, so verification cannot end with the first ARM release. A port succeeds when target users can reliably finish their work, not when ARM64 appears in a package name.
Sources and verification
This article draws on published documentation and editorial guidance. Unless explicitly stated, it does not report our own hardware tests. Sources checked: September 27, 2026.