Para poupar o trabalho que tive a pesquisar para solucionar o meu problema posto a solução .
Na maioria aparece um codigo de erro que não deixa o windows update actualizar após seguir os passos a baixo fica tudo ok.
Got this error message (and several other Windows Update and Microsoft Update
error messages) on multiple computers after manually updating them via
Microsoft Update. I updated them via Microsoft Update, restarted, visited
Microsoft Update (to verify 0 updates left), and encountered this error.
The FIX, which may also work for many other Windows/Microsoft Update related
bugs, is to...
1) Close all IE Windows
2) Control Panel -> Internet Options -> Delete Temporary Internet Files
3) Control Panel -> Admin Tools -> Services -> Stop the "Automatic Updates"
service
4) Delete everything in "C:\Windows\SoftwareDistribution\DataStore"
5) Delete everything in "C:\Windows\SoftwareDistribution\Download"
6) Control Panel -> Admin Tools -> Services -> START the "Automatic Updates"
service
Then visit the Microsoft Update page again, and everything should be fine.
These steps have cured all my auto-update woes before, so I help someone
finds them useful.

