windows updates stuck at 0% complete

machine is sony all-in-one desktop 64 version
Today first time I received a pop-up window from interactive message notification telling me that vcagent.exe (vaio care) is trying to send a message and that it's not compatible with windows. After doing a search online, I found posts about windows updates not downloading. I checked my windows updates and found 68 important updates available. I checked the installed updates and no updates have been installed since August of 2015. I get a 0% complete whether I try to install 1 or 68. my notification for win updates is "check for updates but let me choose whether to download and install them"
Based on other posts online I have tried stopping and starting win updates from cmd.exe and deleting the files in c/windows/softwaredistribution/download. None of that worked.

Now I just tried the vaio care update and after hanging at "installing..." for awhile, it failed to install.

Edited by ihadnohorse, 12 February 2016 - 05:59 PM.

 It sounds like you may have some corrupt system files.  Start an administrative command prompt and issue this command:

sfc /scannow.  Note that it can run for a while - 10 to 30 min. in most cases.  If that doesn't fix it, download MalwareBytes from here, get it up to date, and run it.  If you're still having problems, you may want to post in the Am I Infected forum.

 Good luck.

I fixed it and don't really know which of these did the trick:
1) downloaded the system update rediness tool which got stuck running 2) changed the win update setting to "download updates but let me choose whether to install them" 3) ran sfc/scannow which found some corrupt files it couldn't fix, but the folder CBS log denied entry 4) rebooted
All 68 updates are now downloaded & installed.

 Good to hear.  Thanks for the feedback.

I fixed it and don't really know which of these did the trick:
1) downloaded the system update rediness tool which got stuck running 2) changed the win update setting to "download updates but let me choose whether to install them" 3) ran sfc/scannow which found some corrupt files it couldn't fix, but the folder CBS log denied entry 4) rebooted
All 68 updates are now downloaded & installed.

Did the system readiness tool completely freeze and crashed? OR you forcefully exited it by ending a task or shutdown?

The SFC scan most probably did the trick.

Ol' sfc.