Topic: [Solved] Windows 2008 Server - 0xc0000225
This problem is similar to the problem described in the FAQ where resizing your Vista boot partition renders your OS unbootable. In this case the Vista install media can be used to repair the problem.
I found that resizing a a Windows 2008 Server boot partition produces the same result. Booting off of the install media does not give you a menu that allows you to fix the problem however. What you get is a menu to bring up a command prompt or run memory diagnostics.
To fix the problem you need to select the command prompt option. From there change into the X:\sources\recovery\ directory. There you will find a program called StartRep.exe. Run this program and your boot partition will be fixed and life will be good again.