Error updating windows phone 7
Also, the documentation for this error code provided by Microsoft doesn’t help.
If you have upgraded your Windows Phone version and some apps do not support it, you will encounter this problem. To make things worse, your apps list is populated by lots of invalid entries. When you reset your Windows Phone 8 device or you simply exchange it with a different one, after you log in with your Microsoft account for the first time, you are asked whether you would like to restore your phone, apps and settings using the most recent backup stored on the .The trouble is that none of these options work and you are stuck with a long list of invalid app entries.This problem, together with others is described here by Microsoft: Error messages downloading applications from Windows Phone Marketplace or Store.The trouble with the error code 8000ffff is that it doesn’t tell you much about what is going on.Microsoft has posted a pretty thorough KB article that might help. I suggest you read the full article for troubleshooting.
Essentially, something is stopping Zune from talking to Microsoft's update server.
If you receive Windows Update error 80072efe or 80072f76 while checking for updates, it might be caused by a connection interruption between your computer and the Windows Update servers. If you still receive this error after checking your Internet connection, it might mean that a program running on your computer is preventing Windows Update Services from accessing the Internet.
Programs that might do this include firewalls, antispyware software, web accelerators, Internet security or antivirus programs, or proxy servers.
If you have changed your phone with another one, then some applications will not move over and you will encounter this problem.
In my case, I changed my Nokia Lumia 920 with a Samsung Ativ S.
All the Nokia exclusive apps were not moved to the new Samsung phone and for each exclusive app I encountered this error.