UpdateTrustedSites.exe, a Microsoft utility, may be causing errors or consuming large amounts of CPU on Windows clients.
This can happen on standalone computers, when running Windows within Citrix or other situations.
"UpdateTrustedSites.exe has stopped working" popup.
Task Manager showing UpdateTrustedSites.exe consuming large amounts of CPU
Windows 10
Windows Server (variety of versions)
Symantec Endpoint Protection 12 and 14
SEP is preventing UpdateTrustedSites.exe from working properly.
SEP was designed to allow for exclusion of executables for situations such as this one. The resolution is to create an exception for UpdateTrustedSites.exe within the SEP policy used by the affected SEP client computers.
In the SEPM console: