Windows 2003 Error

[netpicker9]

Hi, I installed 2003 Server on Segate Hard disk and later i connected to different (HP System), when i tried to boot using connected Hard Disk, its showing some blue screen and restarting again and again..

What is the solution?

I already tried Repair Option using CD, its asking for password and i gave Administrator Password and press enter, after that cursor stopped at C:\Windows , and when i restart the system.. same thing again, Blue Screen.. Even i am unable to read the Blue Screen also.. just it is sayting one second..

Suggest me some solution.

Thanks
Jen