AHCI problem?

Hi guys,

CTM requires a reboot after install it. But it won’t boot up just stuck there before windows XP logo comes up. No error message.
I’m using a HP Elitebook 8440p notebook, AHCI is turned on. Could that be the cause?

Please help.

solved. change setting to IDE and repaired windows. working fine. So it was AHCI causing the problem.