My Vista HP G7000 wont boot up

[BeautifulAngel]

Please help, i am trying to get onto my laptop but when i turn it on all it comes up with is...prepare boot to OS, nothing else happens, only a black screen.

Its a vista HP G7000 LAPTOP

Thankyou, Lesley

 

[usasma]

I suggest starting all troubleshooting with the following diagnostic tests. They'll save you a lot of time and heartache if there is a hardware failure, and you'll have the disks on hand in case you need them in the future:

H/W Diagnostics:
Please start by running these bootable hardware diagnostics:
Memory Diagnostics (read the details at the link)
HD Diagnostic (read the details at the link) - Test ALL of the hard drives.

Also, please run one of these free, independent online malware scans to ensure that your current protection hasn't been compromised: Free Online AntiMalware Resources (read the details at the link)