When I restart my computer I keep getting a black screen with the message

Windows failed to start. A recent hardware or software change might be the cause. If
windows files have been damaged or configured incorrectly, startup repair can help
diagnose and fix the problem. If power was interrupted during startup. Choose start
windows normally

Launch startup repair

Start windows normally

When I choose either one it goes back to this same screen asking it again. I also tried
using the reinstalling dvd windows vista home basic 32bit

When I press f 8 it gives me a list of options on advanced boot options
I,ve tried repair your computer and safe mode and it still does the same thing

When I restart my computer I keep getting a black screen with the message

Windows failed to start. A recent hardware or software change might be the cause. If
windows files have been damaged or configured incorrectly, startup repair can help
diagnose and fix the problem. If power was interrupted during startup. Choose start
windows normally

Launch startup repair

Start windows normally

When I choose either one it goes back to this same screen asking it again. I also tried
using the reinstalling dvd windows vista home basic 32bit

When I press f 8 it gives me a list of options on advanced boot options
I,ve tried repair your computer and safe mode and it still does the same thing.

As far as the driver digital signatures, it crashes right after I see my screensaver and reads me this long error message.

a recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.
If you have a windows installation disc, insert the disc and restart your computer. Click "repair your computer," and then choose a recovery tool.
Otherwise, to start Windows so you can investigate further, press the ENTER key to display the boot menu, press F8 for Advanced Boot Options, and select Last Known Good. If you understand why the digital signature cannot be verified and want to start Windows without this file, temporarily disable driver signature enforcement.
Status: 0Xc0000428
Info: windows cannot verify the digital signature for this file.

Enter=Continue|Esc=Exit

What I’ve tried so far:
Safe Mode (won’t work)
System Repair (won’t work)
System Check Point (none created)
Okay, it let me in Windows, where do I go from here?

How can I figure out the problem now that I’m actually in Windows now?

I’m paranoid, I feel like any minute it’s about to boot me off and give me that dreaded all blue prompt screen again-lol