It's unfortunate to hear that you're experiencing issues with the time and date settings on your Windows 11 machines. Corrupted BIOS clocks can indeed cause time-related problems on your computers. While it is uncommon for Windows updates to directly affect the BIOS, it's possible that other changes made during the update process indirectly caused this issue.
To troubleshoot this further and prevent future occurrences, I recommend the following steps:
1. Ensure that your Windows 11 machines have the correct time zone set: Go to Settings > Time & Language > Date & Time, and verify that the correct time zone is selected. Also, ensure that the "Set time automatically" and "Set time zone automatically" options are enabled.
2. Update your...