Nothing has changed regarding GenP, it still does not support ARM architecture. GenP is only compatible with Windows 10 and 11 on standard x64-based systems and does not work on modified versions of Windows or on devices using ARM processors.

The Surface Pro 11 uses a Snapdragon X-series CPU, which is based on ARM architecture. While Windows 11 for ARM includes an emulation layer that allows some x86 and x64 apps to run, particularly those that are not able, or not yet able, to run natively, this does not guarantee compatibility with all software, especially low-level tools like GenP.

Regarding your claim of having run Photoshop 2024 and GenP previously on the same device: that was likely possible because Photoshop 2024 still included an x64 version, which could run under emulation. GenP may have worked with that emulated version at the time. However, with Photoshop 2025 (v26.x), Adobe are shifting more fully to native ARM64 builds on ARM hardware. These native versions bypass emulation and are therefore incompatible with GenP, which only supports patching x64 binaries.

Emulated apps can also break due to Windows updates, driver changes, or app updates, especially when tools rely on precise system-level behaviour, like GenP does.

Ultimately, this issue is not GenP-specific but rather a limitation of running Windows on ARM-based hardware. If you’re looking for more information or need help troubleshooting Photoshop itself, you’re better off posting on the Photoshop Subreddit or searching the Adobe Community, where similar ARM-related discussions already exist.

Note too that even if you try using releases from Monkrus, you’ll encounter the same issue. These builds are simply prepatched using GenP files and methods, so they are subject to the same architectural limitations. Until GenP officially supports ARM architecture, Monkrus won’t either, nor will any third-party software sources that merely repackage or redistribute the same underlying tools.