I recently upgraded Windows 7 Home Premium to Windows 8 Pro.
Each time Windows Update runs, it installs the updates, and then when it restarts, it locks up on:
"Preparing to Configure Windows"
You then have to hard-reset the laptop, and it will then restart. Sometimes it boots normally, and sometimes it says that you have had issues and need to start in Safe Mode etc.
If you then check Event Viewer, it shows that the updates have installed ok.
I have since found I get the same issues when trying to install additional Windows Features. I have attempted to install Media Center and Hyper-V. Media Center stuck at "Preparing to Configure Features", but did show as installed after a hard reset. Hyper-V failed to install and rolled back.
Does anyone know why it may be sticking at this stage? Or how I can identify why?