I have a Windows Server 2003 SP1 system. It's using an intel ICH8R SATA RAID controller. I originally had a piece of software (Ardence RTX) that required the ACPI driver to be set to uniprocessor. A new version of RTX is now available, and it supports multi-core CPUs. I performed the following steps:
1. Removed RTX,
2. Rebooted -- system booted fine
3. Changed ACPI setting from Uniprocessor ACPI PC to Multiprocessor ACPI PC
4. Rebooted -- system fails to boot, presents the following message:
Windows could not start because the following file is missing or corrupt: System32\Drivers\Ntfs.sys
I'm not sure exactly what happened. I tried the troubleshooting steps listed here (http://support.microsoft.com/kb/822800
), but they didn't help. The ntfs.sys file on disk and the one on my Windows 2003 disc are identical at a binary level according to a file comparison program that I have.
Does anyone know how I can revert to the old uniprocessor ACPI HAL driver in order to get the system to boot again?