Computer not turning on?

Ok i press on and it does exactly this: Its vista new laptop compaq presario

Black screen
takes longer than usual on the windows loader
black screen for like 15 seconds
black screen forever

RESTART PC AGAIN THIS HAPPENS

black screen
"windows error recovery"
"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
(use the arrow keys to highlight your choice.)

Launch startup repair (reccomended)
Start windows normally"

i click launch start up repair
black screen
Windows is loading files… (white bar under text)
black screen
windows loader microsoft corp
goes to a really old windows style computer with the blue background
stat up repair cannot repair the computer automatically.

iclick view advanced options for system recovery and support
i try all the things in there to help recover computer, none work. all fail, i go back and click view diagnostic and repair details

just shows basic info of my pc like 10 pages worth i click finish, comp turns off.
WTF DO I DO. its been like this like a week.

but STILL get malware that they can’t find and clear, or/and which ruin my registry after removing stuff: Prevx 3, the one from Malwarebytes, Ad-Aware, STOPzilla!, AVG, SpySweeper, SuperAntiSpyware, and Norton Antivirus. So what antimalwares are there that are better than these?

Will you come back and see if I have any follow-ups for your answers, please?

Thanks, if so,
Mike
I keep getting browser hijacking, 1A, 1B, 1C.tmp, etc., and random sound ads, and my programs cannot kill these! But besides that, why can I get them so SOON right after a clean reinstall of Windows (you know, that wipes the old windows folder with a new one, and quits using the old settings folders in Documents and Settings, which I then erase. So if I can’t yet format my hard disk (because not all my data is archived yet), then this should work as a clean enough reinstallation, should it not?

So there are those 2 things: How do I keep those things from reattacking me right after the new, clean install, and which program is best at it?
Oh, and XoftSpy is one I’ve tried already, too.

And yes, I do run the Windows Firewall as the immediate defense right after reinstall, but see, it doesn’t work that well.
JS-Computing.com, apparently you didn’t read my question very well, because I just barely said that I already tried SUPERAntiSpyware.
Yes, MB, I AM doing a clean install–but not a reformat (I don’t have the space to move my files temporarily, and I haven’t archived the stuff yet). Those are 2 different things. "Clean reinstall" doesn’t mean you have to reformat. That just means you’ve chosen to have a new copy wipe over the old folder, rather than doing what some people call an "upgrade install" (even if it’s not an upgrade) or an "in-place install" or a "repair reinstall" (which repairs hardly anything).

So no, I did not reformat my drive, but even though malware can be hooked with just about any file, they’re only active if they’re in the Windows or Documents and Settings folders, right, because while they can be attached to a lot of things, they can only run with DLLs or as .exe files, right?
Okay, MB, I still think that clean reinstallations and cleaning the drive are separate things (otherwise, what can ya call the kind of Windows installation that’s fresh even without reformatting, instead of just an "upgrade"–just a "fresh reinstall" but not a "clean reinstall"?), but your answer still sounds like a pretty good one. Thank you. I’ve been trying to finish archiving this hard disk to DVDs for some time now. I’ll try to find the funds to buy a 4th fixed hard disk (my current 2 others besides this C: are too full, too) so that I might be able to do it faster. Or maybe I’ll buy a Blu-ray burner and discs. The Blu-rays would be faster than the regular DVDs, obviously, but the 4th hard disk would be faster than the Blu-ray, even.

And thanks, France and the others, too.
JS, I’d like to apologize for giving you a thumbs-down just because you suggested SUPERAntiSpyware even though I had already said that I tried that before. You did provide some other examples that may be good, and so I’m sorry. I’ll try to find someone to give you a good thumbs-up to work against my bad one.

Have a better day tomorrow,
Mike