We were unable to connect to the update service under Windows 10
If you try to update your Windows 10 machine but receive a message We were unable to connect to the update service, we will try again later, or you can check now if this does not work, make sure you are connected to the Internet Here are some things you might try to fix the problem.
Although this problem occurs primarily when you do not have a valid Internet connection, it may occur for no reason. If you click the Repeat button, you will get the same error on your screen.
We were unable to connect to the update service
1] Run Windows Update Troubleshooting