If you cannot access Windows Vista, you can still use the Hardware Diagnostic Tools to test for hardware issues.
Running the test from the startup screen (boot)
If your computer was manufactured in 2008 or later, you may be able to run a hardware diagnostic test during the startup process. To do so, turn on the computer and press the F9
key during the screen with the HP or Compaq logo.
Figure 12: Example of Boot screen that displays the key press to enter the BIOS test.
Diagnostic Tools opens and performs a variety of hardware tests. Green checkmarks appear next to hardware items that pass the test. Any problems found are reported.
Figure 13: Screen example: Diagnostic Tools test