The April Windows 11 update KB5083769 is triggering boot loops and Blue Screen of Death crashes on some HP and Dell PCs. Microsoft’s AI-assisted guidance recommends first using WinRE-based System Restore, then Startup Repair, and if needed a Local Reinstall to recover the system.
Microsoft's February 10, 2026 security update KB5077181 for Windows 11 versions 24H2 and 25H2 appears to trigger boot loops on affected devices, forcing multiple restarts; while it patches 58 vulnerabilities (including six zero-days) and ships new Secure Boot certificates to improve boot integrity, users report login failures with System Event Notification Service errors, DHCP connectivity losses, and install errors such as 0x800f0983/0x800f0991, prompting uninstall guidance via Control Panel or Windows Recovery Environment and a suggested SFC scan; enterprises should test via WSUS and monitor health while Microsoft has not publicly acknowledged the issues.
A February Windows 11 update, KB5077181 (for 24H2 and 25H2), is causing critical startup problems for some users, including endless restart loops and login failures with error codes such as SENS, 0x800f0983, and 0x800f0991, as well as DHCP-related issues. Microsoft has not provided a fix or listed these problems as known issues. The recommended workaround is to uninstall KB5077181 via Control Panel and pause automatic updates to avoid reinstallation; some users have also tried recovery-mode resets with limited success. Users should wait for an official patch while safeguarding systems by delaying updates.