Microsoft’s first replace for Home windows 11 in 2026 has been a buggy mess, to say the least. After reviews of shutdown points on some machines, Microsoft issued an emergency update to repair its January 2026 Home windows 11 replace final weekend. Now, precisely every week later the software program maker has been pressured to concern a second uncommon out-of-band fix to handle OneDrive and Dropbox crashes.
Microsoft can be investigating reviews of boot failures that may very well be associated to its January 2026 safety replace.
Whereas the primary shutdown bug was restricted to machines operating Enterprise and IoT editions of Home windows 11 model 23H2, the newest out-of-band replace fixes crashes and unresponsiveness in OneDrive and Dropbox on the newest 24H2 and 25H2 variations of Home windows 11.
Similar to the primary emergency patch to repair this problematic January 2026 replace, the second out-of-band replace was launched over a weekend, leaving IT admins with a busy Monday morning. There may very well be additional complications forward for IT admins, too.
Microsoft warned over the weekend that its January 2026 replace can also be creating boot failures on some machines. In an alert to IT admins, the corporate mentioned it was investigating reviews of boot failures with 24H2 and 25H2 after putting in the January 2026 replace. Some PCs have been bluescreening with a UNMOUNTABLE_BOOT_VOLUME cease code, and Microsoft warns these machines must be manually recovered.
Microsoft hasn’t accomplished its investigation into the boot failures, so it’s not clear if it’s undoubtedly this replace inflicting the issues. An analogous safety replace final yr was initially blamed for SSD points, however the root trigger was truly early versions of firmware and motherboard BIOS.
