Windows 11 KB5121767 is an out-of-band fix for select Dell PCs hit by July’s update

Microsoft has issued Windows 11 KB5121767 as an out-of-band update to address performance and power-related problems on a limited set of Intel-based Dell systems after recent Windows updates. According to Microsoft’s release notes summarized by Neowin, the issue stems from an incompatibility with the Intel Innovation Platform Framework (Intel IPF) driver that could alter performance, power consumption, or overall system behavior once the June/July updates were applied. This update is intended for affected devices and is not required on others.

KB5121767 effectively enables those PCs—previously blocked from installing July’s Patch Tuesday update (KB5101650)—to receive the security fixes along with this additional correction. After installing KB5121767, Windows 11 should report build 26100.8894 on 24H2 and 26200.8894 on 25H2 (per Neowin). For context, July’s original KB5101650 moved devices to build 26100.8875 (24H2) or 26200.8875 (25H2), as noted by Windows Latest.

Who actually needs this update

Microsoft positions KB5121767 for a “limited number” of affected Dell devices. Windows Latest reports that Microsoft has not published a model list, but its own sources indicate the following Dell lines have been impacted:

• Dell Pro Max 14 Premium MA14250
• Dell Pro Max 16 Premium MA16250
• Dell Pro Precision 7 14 PW714260
• Dell Pro Precision 7 16 PW716260
• Precision 5470, Precision 5480, Precision 5490, Precision 5770
• XPS 17 9720, XPS 17 9730

Because Microsoft has not confirmed model specifics publicly, treat this list as indicative rather than definitive. If your Intel-based Dell was blocked from KB5101650 or began showing symptoms such as unexpected shutdowns, poor performance, increased heat, or accelerated battery drain after recent updates, KB5121767 is the update to look for.

Windows Latest also relays a Dell internal notice cautioning admins not to deploy the June optional update or the July security update to the affected systems until a fix was available. With KB5121767 now out, those systems can proceed via Windows Update.

A note on distribution and that Windows Update toggle

Windows Latest observed that KB5121767 appears in Windows Update for everyone and may automatically install on PCs with the “Get the latest updates as soon as they’re available” toggle enabled—even if the device isn’t impacted. The entry may show as “2026-07 Update (KB5121767) (26200.8894),” which doesn’t clearly signal that it’s an out-of-band fix for select Dell models.

• If KB5121767 already installed and your system is healthy, there’s nothing to do.
• If you prefer to avoid nonessential out-of-band releases automatically, consider turning that toggle off under Settings > Windows Update.

Microsoft’s guidance, cited by both Windows Latest and Neowin, is straightforward: if your device is not affected, no action is required.

How to verify what you have

• To check whether you’re on the July baseline, open Settings > System > About and look at Windows specifications. KB5101650 corresponds to build 26100.8875 (24H2) or 26200.8875 (25H2), per Windows Latest.
• KB5121767 moves you to build 26100.8894 (24H2) or 26200.8894 (25H2), per Neowin.

If KB5101650 never appeared on your Dell PC, that was by design while Microsoft mitigated the Intel IPF driver issue. KB5121767 lifts that hold.

For admins

Neowin notes the update is available via the Microsoft Update Catalog for manual deployment. For managed devices enrolled in hotpatching, an equivalent release is available as KB5121768. Windows Latest also reports that Microsoft advised against force-installing July’s update on blocked systems due to risks of shutdowns, heat, and battery drain; with KB5121767, those devices can now advance safely.

Sources: Neowin, Windows Latest, Windows Latest (impacted Dell models)

Alex Mira

Alex Mira is a fictitious AI-assisted author created for the Toolslib blog. Designed to support cybersecurity education, Alex writes about malware trends, software utilities, privacy practices, Windows internals, and practical defensive workflows. Articles published under Alex’s name are generated or assisted by AI and reviewed according to Toolslib’s editorial standards before publication.