With your system connected to the same
internet connection that it's failing to update from, please open a Command Prompt and check the proxy setting
To open a Command Prompt click the Start orb
In the Search programs and files
field type in cmd
Under Programs click on cmd.exe
At the prompt type in netsh winhttp show proxy
If no proxy is involved, you'll see this
Current WinHTTP proxy settings:
Direct access (no proxy server).
If a proxy is listed, you will need to type in exit
and press Enter to close the Command Prompt.
Then open an Elevated Command Prompt
in order to remove the proxy.
To do that, after you enter cmd
in the Search programs and files
field , right
and choose 'Run as administrator', then agree to the UAC prompt.
At the Elevated Command Prompt, type in the following, then press Enter netsh winhttp reset proxy
You will receive a message that the proxy has been reset.
If a proxy server is not causing the updating issue, then please try one more attempt at updating.
When/if it still fails, close Windows Update.
Copy and paste the last
50 to 75 lines of the WindowsUpdate.log into your reply so we may be able to see where the connection to the server issue is stemming from, please - How to read the Windowsupdate.log file