This is a Dell "security" feature and seems to be difficult to uninstall or disable. You should ask Dell, either Dell Support or in the Dell forums.
Dell Support:
http://www.dell.com/support/home/us/en/19/?l=en
I found this post, which may help: https://www.dell.com/community/Windows-General/Trusted-Drive-Manager-memory-issue/td-p/3930787
If disabling the service as explained in the linked thread doesn't help, create an account and ask here: https://www.dell.com/community/Windows-General/bd-p/Microsoft-OS