Why am I not able to update my OS ?

[Sameer_Ranjan]

I have a lumia 520 with windows 8.10.12393.890 OS. When I am checking for updates, it's showing an error 80072ee7. Also not able to register PFD.

 

[aximtreo]

I did a SIMPLE GOOGLE SEARCH and found these links that may be of help answering your question. Remember, search is always your FIRST OPTION.

https://www.google.com/?gws_rd=ssl#q=error+80072ee7