Thanks people.
Yes, bundled software not OS strictly speaking - sorry for sloppy writing.
I haven't decided if I might have a use for it or not yet. It doesn't run at startup, but "phones home" (or whatever it's doing) sometime in the p.m.. There is a service I could disable, I guess...
There are now five different processes, related to Cyberlink, listed in Exclusions for Hardened Mode. Not just different file names but, different paths as well. I might try the wildcard idea if it keeps adding more. Tho I don't know what it's trying to do, tbh.
My main worry was that, after adding a number of exclusions (via the pop up message arrangement) - and seeing them listed previously - one day the list was gone.
DavidR,
I'm assuming my account type is limited. It's whatever the default is in Windows 8.1, and there doesn't seem to be any way to change it. Doesn't appear to stop me doing administratory things tho.
EDIT: I am the Administrator. (Still finding my way around.)
Hardened Mode is set to Aggressive.
Now I think about that, it demonstrates to me that "Restore factory defaults" (and, Repair - supposedly does the same thing) doesn't actually work.
I checked my Scan and Scheduling settings, and they ain't default either.

But, hey.. Maybe that's where my Exclusions went.
If I may trouble you with another question now:
One of the Exclusions has a red exclamation mark on it.
Can anyone tell me what that means?
(It was a (updated) Dell software installer, btw.)