Microsoft says Windows 10 on ARM will get support for x64 emulation, letting users run 64-bit Intel apps, later this year
The idea that Microsoft was going to support AMD64 (or x64) emulation on Windows on ARM has been floating around since November of last year, when we exclusively reported that the company was working on it.
Context & Ripple Effects
This closes a gap Microsoft has been documenting for years. The ARM push began with x86 emulation built through a partnership with Qualcomm in 2016, but by 2018 the company had spelled out what Windows 10 on ARM still couldn't do — including no support for 64-bit apps — leaving ARM laptops unable to run a large share of the Windows software catalog.
The x64 promise floated since Neowin's November 2019 report now has a shipping timeline. Within two months of this announcement, Microsoft delivered an x64 emulation preview to Windows Insiders, and a year later it confirmed that only Windows 11 will carry x64 emulation on ARM — making this the moment the compatibility story turned, and the moment Windows 10's role in it began to shrink.
First-order effects
- Windows 10 on ARM device owners gain the ability to run 64-bit Intel apps later this year, erasing the single biggest app-compatibility limitation Microsoft itself cataloged in 2018.
- Qualcomm-powered ARM PCs, which until now could only run 32-bit emulated Win32 apps, become sellable against Intel machines on software breadth rather than battery life alone.
Second-order effects
- Intel loses one of ARM Windows laptops' clearest differentiators: with x86 and x64 both emulated, the 'it can't run my apps' objection shifts toward performance and native ARM ports.
- Independent software vendors face pressure to ship native ARM64 builds, since emulation is now demonstrably a bridge Microsoft treats as temporary rather than a permanent crutch.
Third-order effects
- The follow-on coverage shows the structural catch: x64 emulation ultimately lands only on Windows 11, so Windows 10 on ARM becomes a dead end for the feature — Microsoft using compatibility promises to pull the ARM install base toward its next OS rather than sustaining the old one.
- If the pattern holds, Windows on ARM competes on a two-track model — emulation for the legacy catalog, native ARM64 for the future — mirroring how Apple approached its own silicon transition, with the x86 app estate gradually losing its role as Intel's moat.
The trend: Microsoft is closing Windows-on-ARM's x86 compatibility gap through emulation as a bridge strategy — but is routing the payoff toward Windows 11, accelerating the retirement of Windows 10.