We have Ad Manager, Ad Audit, Exchange Reporter and AD Self Service all running on one server.

Received an alert for the C: drive running out of space. Investigating, I see there are 30gb+ of temp files in the InetCache folder of the user account.

C:\Users\ServiceAccount\AppData\Local\Microsoft\Windows\INetCache\IE - 31.6gb's

Additionally, I see that service account is running about 50 instances of IE.

Question - 

1. Is the inetcache safe to delete? If not, how do I do we shrink that footprint? 

2. Is 50+ instances of IE normal? if not, how can I get rid of them without rebooting?

(Restarting services had no effect on either issue above)

Thanks in advance!

Richard