Sometimes when installing multiple updates strange things can happen. You could try running a System File Checker scan from an elevated command prompt (option two) and make sure you don't have any damaged or corrupt system files. If any problems are noted run the scan 3 times rebooting in between each scan. SFC /SCANNOW Command - System File Checker
In the future, you could try installing your updates just a few at a time rather than all at once. If updates are installed all at once, it's almost impossible to figure out which one(s) had issues. A few at a time (no more than 10) let's you see how the computer works before installing the next group. If problems are noted you'll know exactly which updates to uninstall. Install them one at a time. They'll either install correctly (and you can move on to the next group to install) or you'll be able to figure out which is the problem update. Takes a little longer this way but seems to minimize update issues.
If you're feling adventurous you could try restoring your computer to a date/time prior to the updates (that will effectively remove them.) Then use the few at a time method to reinstall. Personally, if the SFC comes back OK and if the computer is working fine now, I wouldn't tempt fate.