I got the fix!
I had the same problem. Restart your PC and go to the windows startup settings. From there select the option to repair your system. For me when I did that i got to the desktop. Then it froze my system again. Then I pressed my computer case’s restart button. After that the system started working perfectly fine for me. I also checked that the update was installed correctly from the update history.
No, that is not a fix for the majority of people having these problems & if it fixed yours I VERY highly doubt you had the same problem to begin with. It has already been confirmed by both Microsoft and several antivirus vendors, that the combination of these Windows Updates and a handful of antivirus apps are causing this problem. There is information supporting this and my previous reply all over the internet. The "fix" has already been given. Myself and plenty of others obviously already tried the "repair your system" options to no avail. I do NOT recommend d0ggy's reply as a fix. The actual recommended solution that has been made by several antivirus vendors is the same as what Avira suggested in their reply to me. One only has to look at my last response and read the link provided to get the proper answer. That info is literally all over the place. Tons of people having this problem (including Win7 and 8.1 users), and tons of people have offered the fix. Including MS and the av vendors themselves. The solution I posted is confirmed, not just some random nonsense that may or may not work.