M$ just released a whole bunch of patches today, [1]

(other security no really related to your error though)... For the BIOS [2]

or other hardware drivers etc, check the DELL support website for your Desktop model number and see if there are any updates available... Do you have your service ID tag number? Some TZ'rs might be able to help get the right updates
[1] I got them.

[2] There were updates, but not for the BIOS. What does BIOS stand for?

Most of the Dell updates are older than my PC.

Thank you for replying.