A nasty situation no doubt, but manageable. What I would do is:
0. Rename IE to 'intranet'.
1. Configure IE to only access Intranet.
2. Switch everyone to chrome/firefox, keep bookmarks, etc
3. Hire some university students to temp man the support line as you are flooded with support requests.
As I said a nasty situation. Perhaps it would be best to spread a rumour that someone was fired thanks to IE. That way you are not evil IT getting in the way of everyone's job.
0. Rename IE to 'intranet'. 1. Configure IE to only access Intranet. 2. Switch everyone to chrome/firefox, keep bookmarks, etc 3. Hire some university students to temp man the support line as you are flooded with support requests.
As I said a nasty situation. Perhaps it would be best to spread a rumour that someone was fired thanks to IE. That way you are not evil IT getting in the way of everyone's job.