critical file

Microsoft rolled out Patch Tuesday updates for Windows 11, specifically KB5094126 and KB5093998, along with dynamic updates KB5094149, KB5095971, and KB5094156. Users have reported various issues post-update, including access difficulties with OneDrive and Dropbox, BitLocker recovery lockouts, and blue screens of death (BSOD), particularly the 0xc0430001 error on HP systems. This error may be linked to a previous bug affecting HP devices related to Secure Boot certificate updates. Users experiencing this error are advised to verify the presence of the boot.stl file on their installation media, as it is essential for Secure Boot. Microsoft recommends using the Update WinPE script to ensure the boot.stl file is included or manually transferring it from the WindowsBootEFI directory. Additionally, some Lenovo PC users have reported system freezes after the update. One user identified a conflict between KB5094126 and User Account Control (UAC) that affects OneDrive and Dropbox access in Explorer, noting that enabling UAC resolves the issue.