I am working on a Toshiba Qosmio G55-Q804 for someone I know, and it is giving me some real trouble. It is running Vista 64 Bit.
When you attempt to load up windows, the green loading bar appears, and loads and disappears. The screen then goes black and just stays like that. If you try to load it in safe mode the system freezes with crcdisk.sys as the last thing loaded.
I have already run ChkDsk probably 15 times. Most of the time it either says it can't be fixed, there were no errors found, or it freezes at 13% through part 3 of it. I ran Vistas automated repair initially (when the screen used to load to a black screen with a movable cursor) and it actually fixed it. I then logged into windows and after a few minutes everything started not responding until the system was locked up, aside from the mouse. After that it would no longer boot to the windows login screen.
I have system restored to a point 2 months ago, and have tried deleting drivers, renaming drivers, and deleting high filters as well, all to no avail. I have tried changing th BIOS settings and removing the battery and discharging the system.
I seriously need help with this. I cannot figure it out, and it is driving me crazy. Unfortunately I don't have the Vista install disk, as no one gives you those anymore. Thank you in advance for any suggestions.