It took nearly a year, but Microsoft has finally improved Windows 11 to run more PC games on Arm laptops

• Windows 11's latest update packs an important feature for Arm CPUs
• It introduces support for AVX and AVX2 with Prism emulation
• Some PC games use these extensions, and previously wouldn't work with the likes of Snapdragon X chips – but they now should

Microsoft just gave Windows 11 laptops with Arm processors better support for games (and software too) courtesy of the latest update for the OS.

Windows Latest reports that the October 2025 update (KB5066835) for Windows 11 (both versions 24H2 and 25H2, which are essentially the same thing) comes with a big update for Prism. This is Microsoft's emulation layer to run x86 (AMD and Intel) apps and games on Arm chips like Qualcomm's Snapdragon X.

Not all games work with Prism, and one problem area has been titles that use AVX or AVX2. These are extensions to the x86 instruction set ...