I checked to see if my computer is up to date and it told me that there were no new updates but that I had some updates that were not installed. Windows update history gave me this error message. It appears that my definitions for windows defender have failed to install for a while. Without giving me warnings when I log in. Have not found anything on what 8007051A error is nor how to fix it. Any ideas on what to do?
Searching for unknown windows update errors leads me to windows fixit which points me to this community.
I'm running Win 8.1. On a Dell Inspiron 15 series 7548 only three years old.