RunDLL / access denied. How can I fix it?

I have a Lenovo notebook with Windows 10. I'm constantly being shown the problem mentioned above, although it should be noted that the message is sometimes listed 5-10 times in succession. At the end it also says that access is denied. I've tried quite a few, but I can't find a solution.

Is the rundll available on the designated path?
Include the full path when calling, possibly in quotes.
Try to run the rundll from a command prompt as an administrator