Due to a recent bad update deployed by CrowdStrike, some Windows workstations may fail to boot. CrowdStrike has deployed a fix for this that requires manual intervention by the IT Team.
At this time - most of the impacted machines have been repaired. Please reach out to the Helpdesk if you are still having trouble booting your workstation. We will continue to monitor the situation over the next few hours and post an update when this issue is resolved.