I am unable to download the subject update for November 2016. It begins to download this update and gets 11% downloaded and fails at this point each time. The October update for this particular named update failed too. Here is the error message I get in my attempt to download the November download for this important download: November, 2016 Security Monthly Quality Rollup for Windows 7 for x64-based Systems ( (KB3197868), Installation date: 11/9/2016 3:10 PM, Installation status: Failed, Error details: Code 80073712, Update type: Important.
I was unable to download the October update for this file (it was a new download in October 2016). It was entitled: "October, 2016 Security Monthly Quality Rollup for Windows 7 for x64-based Systems (KB3185330). I attempted to download it 12 times in October at various dates and it failed each time after downloading 11%. Here is the additional information I get with this download : Installation status: Failed, Error details: Code 80073712, Update type: Important.
I therefore, need assistance to download this update and have the following questions regarding this update:
1. Why does it fail each time for the October and November update to download?
2. What does this particular update do and how important is it for my Windows 7 operating system?