BSODs, BitLocker lockouts, BITS broken, and domain controllers down
Details
April 2026’s Patch Tuesday hit on multiple fronts simultaneously. Some machines restarted into pixelated screens and fell into BSOD death loops. Others prompted for BitLocker recovery keys due to a misconfigured TPM validation policy — first boot after the update, no warning, just a recovery key prompt most users hadn’t saved. Some systems never showed a login screen at all: the PIN and password input box simply didn’t appear after reboot. Meanwhile, Background Intelligent Transfer Service (BITS) and SOAP downloads started timing out across affected clients, with bitsadmin freezing entirely — breaking any application that relied on BITS for auto-updates, including AutoCAD Advance Steel. A reboot temporarily restored downloads, but failures returned after a period of idle. Workarounds for the BITS issue are limited to disabling the service or uninstalling the update entirely.