cannot get SP1
Yes you can?
https://www.catalog.update.microsoft.com/Search.aspx?q=KB976932
This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
Cannot do any updates, cannot get SP1, cannot do anything
You may have Service Pack 1 installed already with Windows Update failing anyway. Have you tried installing KB3138612?
https://www.catalog.update.microsoft.com/Search.aspx?q=KB3138612
Link includes both 32 and 64 bit as did the previous one.