Windows Vista Home Premium Start up failure

Hi, I have a problem with my new computer and I was hoping someone here could help me. It worked for about a week but now Windows Vista won't start up, it just says start up failure when I turn the computer on, then runs an automatic program thats supposed to fix any problems, after that runs it says:

Windows cannot repair this computer automatically

Problem Details:

Problem signature:
Problem Event Name: StartupRepairV2
Problem signature 01: AutoFailover
Problem signatre 02: 6.0.6000.16386.6.0.6001.18000
Problem signature 03: 3
Problem signature 04: 327685
Problem signature 05: FailureDuringSetup
Problem signature 06: FailureDuringSetup
Problem signature 07: 0
Problem signature 08: 0
Problem signature 09: unknown
Problem signature 10: 1168
OS Version: 6.0.6000.2.0.0.256.1
Locale ID: 1033

I'm hoping someone here will be able to tell what this all means and what the problem is being caused by, as if it's something like hardware failure or the preinstalled windows wastn't done correctly I'll be able to make a claim on my warrenty.

This is the PC I have:

ACER RANGER GAMING Desktop PC. Cheap ACER home and office computers from PC World.

You may need to do startup repair 3 to 4 times.

Also take look at these tutorials:

http://www.vistax64.com/tutorials/65361-memory-diagnostics-tool.html?ltr=M

http://www.vistax64.com/tutorials/66978-system-files-sfc-command.html?ltr=S

http://www.vistax64.com/tutorials/91467-startup-repair.html?ltr=S

http://www.vistax64.com/tutorials/76905-system-restore-how.html?ltr=S

http://www.vistax64.com/tutorials/141820-create-recovery-disc.html

theog said:

You may need to do startup repair 3 to 4 times.

Also take look at these tutorials:

http://www.vistax64.com/tutorials/65361-memory-diagnostics-tool.html?ltr=M

http://www.vistax64.com/tutorials/66978-system-files-sfc-command.html?ltr=S

http://www.vistax64.com/tutorials/91467-startup-repair.html?ltr=S

http://www.vistax64.com/tutorials/76905-system-restore-how.html?ltr=S

http://www.vistax64.com/tutorials/141820-create-recovery-disc.html

Click to expand...

Rep for the time and effort needed to provide all the sources shown.

Thankyou for all replies, I would have responded sooner but I've been having some problems with aol, and then I had to go out. I would quote each of you to respond but for some reason I can only see the replies to this thread when I'm posting my own response . I'll find somewhere else to ask about that - It's probably something to do with cookies, it always is

Theog: Thankyou for taking the time to find/ post all the links to the tutorials, I'm going to print off information from them and have a go at getting my computer working tonight. I'm really grateful :D.