Please run the Windows Update Troubleshooter:
http://go.microsoft.com/fwlink/?LinkId=231149
Please provide the exact details of any problem it reports as not fixed.
Windows Update Error Codes
How to solve connection problems concerning Windows Update or Microsoft Update
https://support.microsoft.com/en-us/kb/818018
| 0x80244019 | WU_E_PT_HTTP_STATUS_NOT_FOUND | HTTP 404 - the server cannot find the requested URI (Uniform Resource Identifier). |
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