Windows 11 26H1 Update Confirmed for Nvidia Arm-Based N1X and Snapdragon X2 Devices Only

Microsoft has recently announced the testing phase of Windows 11 version 26H1, which is designed specifically for select silicon chip architectures. Currently, this version appears to be tailored for the Snapdragon X Elite 2 and potentially the forthcoming Nvidia N1X. After attempting the update on a conventional Intel or AMD PC, I noticed minimal changes aside from the version upgrade to 26H1 and build number 28000.

Understanding Windows 11 26H1: Limited Compatibility

Windows 11 26H1 is optimized solely for new silicon architectures, although Microsoft has yet to disclose the specifics of these processors. Sources suggest that it includes specialized optimizations for Qualcomm’s Snapdragon X2, which was unveiled recently. This innovative chipset is expected to power new PCs that will be commercially available from early 2026, with many officially introduced at CES 2026. Major manufacturers such as Lenovo, HP, and Dell are anticipated to launch devices featuring Snapdragon X2.

Aside from Qualcomm, Nvidia’s N1X, along with other impending ARM-based chips, is also likely to receive optimizations within this Windows update. These developments suggest a future ecosystem where both Snapdragon and Nvidia Arm devices can function seamlessly with Windows 11.

Given the earlier release schedule for Snapdragon PCs, Microsoft aims to deploy Windows 11 26H1 ahead of the full Windows 11 26H2 update, which will happen in the latter half of the year.

Will Windows Return to Biannual Feature Updates?

No, Microsoft’s strategy does not indicate a return to the former model seen with Windows 10, which rolled out two significant feature updates annually. The company has confirmed that Windows 11 will maintain an annual update cycle, with substantial updates slated for release in the latter part of the calendar year.

In a recent blog post, Microsoft noted, “Windows 11 25H2 remains the main avenue for new features.”The firm added that “26H1 is not a feature update for version 25H2 and contains only platform changes for specific silicon, ”reaffirming its commitment to a singular annual feature upgrade for all existing PCs in Windows 11 26H2.

Transition from Windows 11 26H1 to 26H2 for ARM-Based PCs

New ARM devices launching in early 2026 will come equipped with Windows 11 26H1 and will later transition to Windows 11 26H2 as part of the annual update cycle. If Windows 11 26H1 is expected to reach manufacturers in November as it approaches its Release to Manufacturing (RTM) phase, devices might be ready for consumer launch by March 2026.

Microsoft is also looking towards a potential September-October launch window for the Windows 11 26H2 update.

What If You Own an Intel or AMD PC?

If you’re operating an Intel or AMD system, there’s no need for concern about Windows 11 26H1; this version is specifically crafted for the new ARM architectures. However, rest assured that any noteworthy features introduced in 26H1 will be made available to all users with the subsequent Windows 11 26H2 update. Notably, new AI functionalities will still require an NPU capable of 40 TOPs.

Nvidia N1X and N1 ARM-Based CPUs: What’s the Buzz?

The excitement surrounding Windows 11 version 26H1 largely stems from its anticipated support for Nvidia’s N1X and N1 ARM-based processors.

Nvidia N1X benchmark — Benchmark: Early engineering sample of leaked Nvidia N1X

With Nvidia actively developing the N1X for desktops, as well as the N1 for laptops, these ARM chips promise impressive battery life reminiscent of the Snapdragon X series but with a gaming-centric optimization for laptops. Rumors indicate a collaboration with MediaTek on these innovative CPUs, aiming for a blend of performance and efficiency.

Investigative findings highlighted an earlier MediaTek job listing indicating a search for an Embedded Software Engineer focusing on the Windows on ARM initiative. The engineer’s role includes traditional GPU driver development and porting to Windows, suggesting a deeper integration with Microsoft’s ecosystem.

Although Nvidia’s advancements have faced some delays, projections suggest that these ARM-based CPUs will launch alongside Windows 11 26H1, heralding a new era for the platform.

Source & Images