There may be a startup issue. Try booting in Safe Mode (hold F8 at startup) ? If it is not an option, use a Windows installation drive and boot from it. Select the Repair option. This should fix errors and update problems without harming your data. From here, restart and check again if PC boots normally.
Once your PC boots normally, check again if all updates were installed correctly. Select only the important onces and make sure you have the free space on your primary partition.