Another update fail for May
Here we go again. Hot on the heels of its emergency update earlier in the month after a failed mandatory security update, Microsoft has confirmed another update fail, advising “we are investigating this issue and will provide more information when it is available.”
While the last update was for Windows 10 users, this time its the turn of Windows 11 to await some special, remedial treatment.“We are investigating reports of the May 13, 2025 Windows security update (KB5058405) failing to install on some Windows 11, version 22H2 and 23H2 devices,” the company posted this week.
Microsoft warns users may see “the following recovery error: Your PC/Device needs to be repaired The operating system couldn’t be loaded because a required file is missing or contains errors.” This ACPI.sys driver issue has error code: 0xc0000098.”
The company explains “the ACPI.sys file (Advanced Configuration and Power Interface) is a critical Windows system driver that enables Windows to manage hardware resources and power states. Note: There are also reports of this same error occurring with a different file name.” This primarily affects enterprise users.
Microsoft says while some physical devices are affected, the failure mainly hits virtual environments, “including Azure Virtual Machines, Azure Virtual Desktop [and] on-premises virtual machines hosted on Citrix or Hyper-V.”
The emergency update earlier in the month followed confirmed reports that Windows 10, users were being hit with BitLocker Recovery screens when trying to install May’s security update. “Windows 10 might repeatedly display the BitLocker recovery screen at startup,” the company warned, confirming an out of band update.
The likelihood is we’ll see something similar this time, albeit it’s too early to say how widespread an issue this is and whether that will get worse. We have already seen Microsoft release the KB5061977 out-of-band update for Windows 11 this month.
