Microsoft has resolved a identified factor inflicting set up disasters and 0x800f0922 mistakes when deploying the Might 2026 Home windows 11 safety replace (KB5089549).
As Microsoft defined when it stated the problem two weeks in the past, those disasters are led to via inadequate loose area at the EFI Device Partition (ESP), which leads to the replace robotically rolling again on impacted units.
Customers suffering from those set up issues see a “One thing did not move as deliberate. Undoing adjustments.” message when the replace rolls again, and might also to find “SpaceCheck” and “ServicingBootFiles failed” log entries pointing to inadequate ESP loose area.
“This factor impacts units with restricted loose area at the EFI Device Partition (ESP), particularly when the tool has 10 MB or much less area to be had,” Microsoft stated. “On affected units, the set up would possibly continue throughout the preliminary stages however fail all over the reboot section at roughly 35–36% finishing touch.”
On Friday, the corporate stated the problem has been resolved within the Home windows 11 KB5089573 preview cumulative replace, with the repair to be made to be had to all customers who set up the June Patch Tuesday updates later this month.
“This factor used to be resolved via Home windows updates launched Might 26, 2026 (KB5089573), and later. We suggest you put in the most recent replace to your tool because it incorporates essential enhancements and factor resolutions, together with this one,” Microsoft added in a Home windows unlock well being dashboard replace.
“For those who set up an replace launched Might 26, 2026 (KB5089573) or later, you don’t want to make use of a workaround for this factor. In case you are the use of an replace launched sooner than this date, and are experiencing this factor, you’ll be able to use the next workaround.”
On the other hand, those that do not need to set up the Might 2026 non-compulsory replace to handle this factor can mitigate it the use of Identified Factor Rollback, a Home windows characteristic that reverses buggy updates driven by the use of Home windows Replace.
In endeavor environments controlled via IT departments, admins can manually mitigate this identified factor via putting in and configuring this Crew Coverage.
You’ll be able to additionally to find additional steerage on deploying Identified Factor Rollback crew insurance policies on Microsoft’s strengthen web site.
Microsoft launched the KB5089573 preview cumulative replace for Home windows 11 variations 25H2 and 24H2 on Wednesday, Might 26, with 30 adjustments, together with efficiency and reliability enhancements.
Previous this month, Microsoft additionally showed that the April 2026 safety updates had been inflicting disasters in third-party backup programs that used a susceptible driving force, and stuck a Home windows Autopatch worm that led to driving force updates limited via administrative insurance policies to be deployed on some Autopatch-managed Home windows units around the Eu Union
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