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.
Tag
windows-11
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.