I am using CIS and have encountered the following problem.
When downloading and trying to install windows 7 update kb976098 the install reaches about 50% and hangs this is the same for hotfix kb977748 tried closing CIS but stiill would not install.
uninstalled CIS and updates worked, I think it is a firewall problem as i am not using the av.
I have installed other updates with CIS nstalled without problem so seems limited to just some updates.
Thanks for a great program. 
Not sure if I should start a new thread – please let me know…
Windows Update continually failed to download some updates. Apparently, my Comodo Firewall was interfering.
–Right click on Comodo system tray icon.
–Select Defense + Security Level.
–Select Disabled.
After download finishes, restore to prior mode (you can reset the security level during the restore point creation – any time after the download portion has been completed).
I may try Training Mode next time, just for grins.
3.14.130099.587