What is crcdisk.sys and what it means when it freezes to load?

What is crcdisk.sys and what it means when it freezes to load? I have just discovered my laptop in the morning completely hang up. I tried to restart it, it froze somewhere in the process. Then I tried safe mode, it also froze but now showed me where - the last line was showing "crcdisk.sys" and the HDD LED was constantly on.
Asked by: Guest \| Views: 223

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Guest [Entry]

"In my case, Windows Vista was unable to load into normal or any safe modes. It would briefly hang at cscdisk.sys followed by the blue screen of death, then immediately flash for a split second and reboot.

To fix the problem, you will need to set your BIOS to ACHI mode. Accessing this setting will vary per computer make / brand.

On a Toshiba:

At boot screen, press F2 until the BIOS menu appears
Select the Advanced menu by using the left-arrow key
Press Enter to display the options
Select AHCI mode and press Enter
Press F10 to save your settings.
Highlight Yes and press Enter to exit from the BIOS utility

Your computer will reboot and Windows will now boot all the way."