Error writing to My Passport 4TB portable drive

Attempting to create a system image on my portable WD My Passport 4TB (which I have done easily a number of times before) the process stopped just as it was starting with the error message:
“An error occurred while writing to the backup target (0 x 80780179)”

This happened again on my second attempt. Not sure what it means or what might be done to fix it, and don’t find anyone having this problem.

I use Windows 10 and have been using the Control Panel link in Windows 10 to make system images using Windows 7.

I managed to get this working. I think the problem I described above was most likely due to some firewall software I have that also monitors unusual internal behavior requiring me to ok certain actions before allowing them to proceed.

Hi @ray-a ,

Please contact the WD Technical Support team for best assistance and troubleshooting:https://support-en.wd.com/app/ask