Windows 7: winows 7 crash while idle

I have a new Dell pc with Windows 7. I have already had to reinstall windows because of conflicts but even before I did that my pc would crash, but it only crashed when I wasn't using it. If I was away from it for 20-30 minutes I would come back and find it had rebooted and there was an event log.
I have looked at some of the events and they have to do with PrintService and something called wininit and one Critical Kernel Power event plus a number of other assorted errors.
I have installed a printer and have installed a wifi network on it plus installed a new dvd\cd rom drive.
Any suggestions for solving this issue?

Thanks

Welcome to the Forums pursuant.

Can you go to C:/Windows/Minidump and see if there are any dumps in there? If so, copy them somewhere, zip them up, and attach them here please.

~Lordbob

thanks for the help, here they are at least the last 3. There are 11

Hi and welcome

First we really neen the dmp file created in the crash. use these to find it and upload it. http://www.sevenforums.com/crash-loc...d-problem.html

thanks

Ken J+

I cannot load them for whatever reason...

~Lordbob

all three dumps are the same with
do you have an HP Pavilion Webcam ?

this is likely to be a driver crash have you visited the dell website and got all updates ?

these drivers are old and need updating

Thanks
I just had another crash, a few minutes ago. How do I find the drivers that need updating at the Dell site. What kind are they is there some way i can identify them ?
i don't have a a web cam hooked up.

Appreciate the advice

google is your friend

just stay away from anywhere that suggest you download anything like a driver helper bla bla

from a quick search i found

• PxHelp20.sys Made by sonic. Used by numerous apps as a cd/dvd burning API such as winamp or DIVx ?
  AFS.sys possibly onboard NIC (Atheros) a thread here

This last dmp was almost useless. Sorry

Thanks for checking, I appreciate it. I had a chat with Dell about this issue and did a hardware check on it and it came up with an error, as a consequence they are replacing the hard drive. I don't know if this is overkill or not. I have had them replace the memory and the dvd drive so far on this 3 week old machine,maybe I got a lemon?