Microsoft has launched the Home windows 10 KB5078885 prolonged security replace to repair the March 2026 Patch Tuesday vulnerabilities, together with 2 zero-days and a problem that stops some gadgets from shutting down.
In case you are operating Home windows 10 Enterprise LTSC or are enrolled within the ESU program, you’ll be able to set up this replace like regular by going into Settings, clicking on Home windows Replace, and manually performing a ‘Examine for Updates.’
Supply: BleepingComputer
After putting in this replace, Home windows 10 will be up to date to construct 19045.7058, and Home windows 10 Enterprise LTSC 2021 might be up to date to construct 19044.7058.
What’s new in Home windows 10 KB5078885
Microsoft is now not releasing new options for Home windows 10, and the KB5078885 replace comprises solely security fixes and bug fixes launched by earlier security updates.
With right this moment’s March 2026 Patch Tuesday, Microsoft has fastened 79 vulnerabilities, together with two actively exploited zero-day flaws.
The whole checklist of fixes is beneath:
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[Windows System Image Manager] This replace provides a warning dialog to assist customers affirm that the chosen catalog file comes from a trusted supply.
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[File History] Improved: File Historical past in Management Panel when backing up information. New information with names containing some Chinese language and Personal Use Space characters can now be backed up.
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[Graphics] Improved: A stability situation affecting sure GPU configurations.
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[Secure Boot] With this replace, Home windows high quality updates embrace extra high-confidence gadget concentrating on knowledge, rising protection of gadgets eligible to robotically obtain new Safe Boot certificates. This concentrating on relies totally on consumer gadget diagnostic knowledge; as a consequence of restricted knowledge, servers are unlikely to qualify, although not explicitly excluded. Units obtain new certificates solely after demonstrating ample profitable replace alerts, sustaining a managed and phased rollout.
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[Fonts] This replace consists of adjustments to Chinese language fonts to fulfill GB18030-2022A compliance.
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[OS Security (known issue)] Fastened: After putting in the Home windows security replace launched on or after January 13, 2026, some Safe Launch-capable PCs with Digital Safe Mode (VSM) enabled are unable to close down or enter hibernation. As an alternative, the gadget restarts.
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[Folders] Fastened: This replace fixes a problem that impacts folder renaming with desktop.ini information in File Explorer. The LocalizedResourceName setting was ignored, so customized folder names didn’t present. Now, customized folder names seem as anticipated.
This replace additionally fixes a recognized situation that prevented Home windows 10 gadgets from shutting down or hibernating if System Guard Safe Launch is enabled.
Microsoft can be persevering with to roll out new Safe Boot certificates to exchange older 2011 certificates that expire in June 2026.
These certificates are used to validate Home windows boot elements, third-party bootloaders, and Safe Boot revocation updates, and if expired, may permit risk actors to bypass security protections.
Microsoft states that there aren’t any recognized points with this replace.
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