Several Update Problems and File Explorer Crash

I have been having update problems that everyone seems to be talking about here. My 3 months old Lenovo (H330) Desktop which I upgraded to W8 a couple of month ago is sometimes spending hours to configure updates and then reverts back to the old configuration. Looking

at the updates that the update manager's list of uninstalled updates,I believe the problem ones are the usual suspects that were mentioned here before: KB2753842, KB2756872, KB2770917, KB2779768. And before anyone mentions it as a possible source of problems,

I have no anti-virus programs installed and I have tried the automatic repair program which gave me the good news but did not deliver. What makes my situation worse than usual is the file explorer crashes that started after this problem with the updates started.

That program opens up fine and it is good for clicking on the files that show up. The problem is whenever I try to click on the Computer icon on the left, the file explorer crashes every other program is back on after 1-2 seconds but the file explorer is

gone. Now I do not want to reset my computer, as it is likely that I will run into the same problem anyway and I do not want to go back to W7. I would appreciate if anyone knows a way to fix the updates but I can live without some updates (I guess). However

I would really very much like to have a fully functional file explorer. Does anyone know a way to fix a component of the W8 without having to go through a full reset or installation?

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