What country are you in?
That process is associated with Hackerwatch i.e. your Firewall. Maybe their website is down temporarily.
Run the Virtual Technician to see if it finds and fixes problems for you.
The problem has been corrected but I don't know how. McAfee tech support was zero help. After trying to end the process - access denied I restarted in safe mode to the command prompt in order to try to delete hwupdchk.exe. That failed because not all files are accessible in that mode. However, after restarting normally things seem to be back to normal.
This had been going on for at least 3 days and there were at least a half dozen restarts during that time so it was entering safe mode and the restart from there that did the trick.
You have to turn off Access Protection in Navigation > General Settings and Alerts in order to change or stop any process involving the software.
But you seem to have got around it by other means, so good for you
BTW if at first support is no help, call them back, give them the session ID # from the previous session and ask for escalation.
All the best ;-)