Visat won't load, error messages - kids laptop, HELP! [View All]

[Tripper11]

My kids laptop(running Vista) won't load windows.
I was doing routine maintenance on it, cleaning temp files, running malwayre etc.
It was being quite clunky. I figured it needed a good going over.

Anway as I was doing some of these things I got a message saying the CD/DVD drive Silencer or something had stopped working and click this to get new one and install. Which I did.
After I did this, still while running malware, I got a message in the lower right task bar saying some files had been corrupted and to run scan/check disk

I was waiting until my malware scan was done t do this when everything came to a grinding halt.

I tried task manager and rebooting and when the computer came back up I got this following message:
"Windows failed to start. A recent hardware or software change might be the cause."
It says to insert windows disc, but I didn't get one with my computer. It says to contact system administrator or omputer manufacturer for assistance,

I also tried booting in safe mode and it went back to the message I got above.

Also, I don't have the Vista disk. It came pre-loaded.

Any help would be greatly appreciated.

Thanks in advance