Fix KB5089549 0x800f0922 EFI Partition Install Error
KB5089549 fails with 0x800f0922 on Windows 11 24H2 and 25H2 when the EFI System Partition runs out of room. Confirmed by Microsoft.
Latest Articles
Server 2016 DC Lookup Fails on 15-Char Hostnames
May 2026 updates break LDAP and DNS lookups on Windows Server 2016 domain controllers when the hostname is exactly 15 characters.
Fix KB5089573 Preview Install Errors 0x800f0915 0x80070306
KB5089573 May 2026 optional preview ships the Low Latency Profile but trips 0x800f0915 and 0x80070306 install failures on older PCs.
Fix Windows Activation 0x8007007B After May 2026 Update
Activation breaks with 0x8007007B after the May 2026 cumulative when the installed key type no longer matches the license channel.
AMD GPU Crashes After May 2026 Windows Update Fix
AMD Radeon users seeing TDR timeouts, black screens, and crashes after KB5089549. AMD published a hotfix driver on May 24.
Fix KB5082670 install failure in Windows 10 / Windows 11 ...
Fix KB5082670 install failure in Windows 10 / Windows 11 April 2026 cumulative update with clear, tested steps.
QuickBooks Desktop Support Ends May 31: Act Now
QuickBooks Desktop 2023 loses payroll updates, bank feeds, and tech support on May 31. No extension. Here's what to do now.
Defender Flags DigiCert Roots as Cerdigent.A!dha: Fix
Defender quarantined DigiCert Assured ID and Trusted Root G4 as Cerdigent.A!dha. Update to definitions 1.449.430.0 and reboot.
KB5083769 Breaks Macrium and Acronis: psmounterex.sys
April 2026 update blocks psmounterex.sys driver. Macrium and Acronis cannot mount images. Update vendor agent or test restores manually.
Windows 11 Lock Screen Login Prompt Missing: Fix
Fix complete login failure in Windows April 2026 Quality Update with clear, tested steps.
Fix Kernel Trust Lockdown Driver Failure in Windows 11
Fix Kernel Trust Lockdown in Windows 11 April 2026 Update (Build 26200) with clear, tested steps.
Fix Outlook Crashes in Microsoft Outlook (April 2026)
Fix Outlook Crashes in Microsoft Outlook (April 2026) with clear, tested steps.