Microsoft released Windows 10 Insider Preview Build 20277/21277 (Windows 10 Insider Preview Build 20277/21277) for users participating in the Windows Insider Program channel on December 10 (local time).
Among them, build 21277 is an ARM version of Windows 10, x64 emulation, that is, 64-bit applications for Intel-based CPUs can be operated. Currently, the general-purpose ARM version of Windows 10 realizes x86 32-bit app emulation, but mainstream x64 applications do not work and require recompilation to move. It is said that ARM 64 applications are natively supported and can achieve the best performance, but the lineup is not yet available.
As this situation continues, Microsoft announced that it will add support for x64 applications soon in October. This time, it is a preview that is not for general use, but it has reached its realization. In this preview, x64 applications can be installed in the Microsoft Store and other places, and games such as Rocket League as well as actual applications such as Autodesk Sketchbook are available. In addition, it is possible to solve the problem of memory shortage experienced by 32-bit applications by allowing the use of the x64 version of Chrome, which could not be run only in the x32 version.
However, due to the nature of the developer channel, some applications do not work at first. This feature is still under development and can continue to improve both compatibility and performance over time. Speaking of the ARM version of Windows 10, it is reported that it succeeded in operating through virtualization on the M1-equipped Mac, and produced a benchmark result that surpassed the second-generation Surface Pro X in both ARM 64 base and x86 applications. Apple executives also made a statement urging Microsoft to sell licenses to general users as well as OEMs. Related information can be found here .