Windows 11 is complaining about YouCam's clwvd.sys file.
I didn't realize I even had YouCam, but...
I have uninstalled YouCam, yet Windows/System32/clwvd.sys is still present and refuses all attempts at removal.

Very annoying that uninstall is incomplete and Windows security has a limitation due to this product.

Don't remember how this product was introduced into my system. I bought some Cyberlink years ago, and I suspect this YouCam came aboard my laptop as some kind of a freebie. I'm sure I would not have paid for it because I've never had a serious interest in any laptop camera application.

Windows 11 is being uncooperative at removal too. This file seems marked as a SYSTEM file which Administrator logins are not allowed to touch.

My removal attempts also included a quick install, then uninstall of YouCam365. That didn't help.