|Can you boot into safe mode? |
Shutdown your computer but before Windows launches, press F8.
On a computer that is configured for booting to multiple operating systems, you can press F8 when the boot menu appears.
Use the arrow keys to highlight the appropriate safe mode option, and then press ENTER.
Once in safe mode (with networking if you want internet access) we can proceed with further troubleshooting. If it locks up in safe mode, you likely have a larger issue at hand.