Apps hang while updating
Either way, the best way to see if this is really the issue is to perform a clean boot.
Previously, I wrote the Ultimate Troubleshooting Guide for Windows 7 Homegroup Issues, which a lot of people found useful.
Today, I am going to write up a ultimate troubleshooting guide for Windows 7 hanging issues.
This includes Windows 7 hanging on startup/boot, hanging when logging off, hanging when shutting down, hanging when installing programs, etc.
You can restart the computer and press F8 to get a list of boot options, which includes Safe Mode, Last Known Good Configuration, etc.
Sometimes Windows will load in debugging mode and then you can restart the computer and it will start up in normal mode fine.