There are several methods you can use to restore Windows Vista to a working state if it fails to boot. Usually, an installation disc is used to facilitate the process, but if necessary, you can do without it.
Necessary
Windows Vista disc
Instructions
Step 1
First, turn on your computer and press the F8 key after the device starts booting from the hard drive. This is necessary to display the Advanced Boot Options menu. Select Run Last Known Good Configuration. Sometimes it helps to revert the changes to the system that caused the crash.
Step 2
If this method did not work, but you assume that the system does not boot due to incorrect drivers for the video card, then in the menu of additional boot options select the item "Enable video mode with low resolution (640x480)". Wait a while for the computer to boot the system with the new settings for the video adapter.
Step 3
If this option does not bring the desired results, then select "Troubleshoot computer problems." Wait until the program that has opened is completed and the message "Error correction completed" appears. After restarting your computer, select "Start Windows Normally".
Step 4
If this method failed to fix system errors, then select Windows Safe Mode. After booting the system in this mode, start the process of its recovery. Unfortunately, this method is only suitable if you have previously created restore points or the system has performed this process automatically.
Step 5
Use the Windows Vista installation disc. It is better to use a disc that contains a similar version of Windows Vista. Press the F8 key at the start of the boot and select DVD-Rom. Wait until a window appears with the item "Advanced recovery options" and go to it. Select the Startup Repair option. Complete this procedure by clicking the "Continue" button. Restart your computer and try to enter the operating system in the usual way.
