Security News > 2024 > January > Windows 10 KB5034441 security update fails with 0x80070643 errors
Windows 10 users worldwide report problems installing Microsoft's January Patch Tuesday updates, getting 0x80070643 errors when attempting to install the KB5034441 security update for BitLocker.
Windows 10 creates a recovery partition, usually around 500 MB, which is not large enough to support the new Windows RE image file, causing the 0x80070643 error when attempting to install the update.
Even this new install has a partition that is too small, causing the KB5034441 security update not to install and display a 0x80070643 error.
The only solution Microsoft has offered at this point is to create a larger Windows Recovery Partition so there is enough room for the security update to install.
After completing these steps, reboot Windows and check for updates in Windows Update to try and install the KB5034441 security update again.
BleepingComputer has been told by a Windows 10 user that this update failed on their device even with a Windows RE partition that is 1 GB in size.
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