Had similar problems with Windows Updates not downloading since December 2015. I finally used Windows Update Readiness Tool Kb 947821 before this was resolved.
In the last series of Updates Kb 3109094 was listed and failed to download. I downloaded the update from MS and installed it and Win 7 refused to load after the installation. I used System Repair to deal with this and am now able to use the machine and now have the same update sitting in Windows Update I have hidden it but would like to hear why MS is offering updates that then stop the machine from being used ?
Edited by MarcX, 16 January 2016 - 08:40 AM.