19 Jan, 2026

Microsoft ships emergency patch to fix Windows 11 startup failures

Microsoft has released an out-of-band update to address a known issue causing some Windows 11 systems to enter recovery and fail to start after installing the KB5058405 May 2025 security update. Users on the affected computers see 0xc0000098 recovery errors in ACPI.sys (the Windows Advanced Configuration and Power Interface driver, a Windows kernel-mode driver critical for […]

2 mins read

Microsoft: Windows 11 might fail to start after installing KB5058405

Microsoft has confirmed that some Windows 11 systems might fail to start after installing the KB5058405 cumulative update released during this month’s Patch Tuesday. On affected devices, users see 0xc0000098 recovery errors in ACPI.sys, warning that the device has to be repaired because the operating system couldn’t be loaded. ACPI.sys is the Windows Advanced Configuration […]

2 mins read

Windows 11 KB5058411 and KB5058405 cumulative updates released

Microsoft has released Windows 11 KB5058411 and KB5058405 cumulative updates for versions 24H2 and 23H2 to fix security vulnerabilities and issues, including 134 flaws. Today’s updates are mandatory as they contain the May 2025 Patch Tuesday security patches for vulnerabilities discovered in previous months. Windows 11 users can install today’s update by going to Start > Settings > Windows Update and clicking on ‘Check for Updates.’ You can also manually download […]

6 mins read