Windows vista will not boot on a toshiba laptop

First try boot options.

On start up press F8, you get different boot options listed.

Select "last known good configuration"
If this doesn't work, try "boot into Safe Mode". Then restart once safe mode loads.

If neither of these work, you may have to attempt a "repair" of windows.

Get a Windows Vista Operating system disk (same version of Vista, Home or Premium).

1. Boot from it (put it in CD drive and restart the laptop).

2. If you still get the same problem start up, you need to set the laptop to boot from CD.

3. Restart laptop, press Delete key or F2, or F12 (it should say one of these on the screen) to enter the Setup. or another key to get "boot options"

4. In Setup (BIOS) Use Right Arrow to find the Boot Options. Use the instructions to move the CD-ROM to first position, above HDD (hard drive). Press Esc, then F10 to save your changes and exit.

5. The Windows Setup CD Rom should now run. It should come to a screen where you are asked to press R to repair windows.

6. When it comes to the command prompt, restart the laptop

Hopefully the laptop should boot OK again.