The Windows team rolled out its Windows 11 Canary preview for Insiders that brings improvement for the company’s App Emulation layer to better support current x86 apps.
Earlier today, Microsoft’s Windows team released the latest Insider build 27744 that brings ‘New Processor Feature Support in Prism’ as the updates highlighted improvement.
Today’s Prism improvements should enable Windows on ARM devices to run the latest feature-packed version of Adobe’s video editing software, Premiere Pro 25. Until recently, ARM powered Copilot + PCs could only brute force emulate older versions of Premiere Pro with relatively smoothness, however, Microsoft’s improvements to Prism should allow users to experience a better, more up-to-date experience with Adobe’s creative suite as well as broadening the support for “any x64” application going forward.
This is huge!
At a technical level, the virtual CPU used by x64 emulated applications through Prism will now have support for additional extensions to the x86 instruction set architecture. These extensions include AVX and AVX2, as well as BMI, FMA, F16C, and others, that are not required to run Windows but have become sufficiently commonplace that some apps expect them to be present. You can see some of the new features in the output of a tool like Coreinfo64.exe.
Amanda Langowski and Brandon LeBlanc – Windows Team
Microsoft notes that the improved App Emulation layer can only recognize x86 applications attempting to leverage CPU features and that there is no current support for 32-bit apps.
While that was the biggest improvement to come to with build 27744, there were others the Windows team wanted to show off such as a new Gamepad keyboard layout for the on-screen Windows keyboard, subtle Task Manager UI tweaks, detaching the virtual hard disk buttons.
Thene there are the low-level fixes coming with build 27744 as well and users should be on the lookout for a fix with PCs that support NVIDIA’s GPUs, addressing the Emoji panel and Clipboard history, for not opening. Other details from the game from the release include:
- Fixed an issue causing some Insiders to see a bugcheck with error PAGE_FAULT_IN_NONPAGED_AREA starting in Build 27723.
- Fixed an issue causing remote desktop connection (mstsc.exe) to crash in the previous flight.
- Fixed a msmpeg2vdec.dll related issue in the last couple flights which was leading to some apps crashing.
- Fixed an issue where rotation info about JPGs couldn’t be queried via APIs (for example, via PowerShell).
- Fixed an underlying issue which was causing the Get-WindowsCapability command to get into a state sometimes where it would fail unexpectedly until rebooting your PC.
- Fixed an issue causing mica to not work correctly when using a slideshow for your desktop background.
- Fixed an issue which could lead to certain apps not detecting a scanner, although one was connected.
Unfortunately, there is no mention of Recall from the Windows Team in this Canary preview release.
