WD actions -I denied permission-Rec'd Error 0x8501001

[Guest]

Windows Defender asked me to permit or deny a firewall port exception. It
stated this program had potentially unwanted behaviour. I clicked deny. An
error box from Windows Defender appeared stating Error 0x80501001. When I
just the history, the action was denied. What is this error? Thanks You!

 

[Guest]

I just ran a quick scan and it shows my computer is working normally.
Definition version: 1.15.2327.4 2/26/07. This error did not occur during a
scan, but, during a permit/deny action. I am not very computer literate so
if you need more info, please let me know. Thank You!