Inspiron 1545 hangs on classpnp.sys file when booting

Was just googling.....you don't seem to be the only one with this problem-check out the first two posts given by the link.

answers.microsoft.com/.../2b7213da-ba91-4228-af9d-2ba6b2d2edc0

Thanks, a few things to try there, will keep this post updated.

OK think I can see what's wrong. The Hard drive fails DELL diagnostics reporting Hard disk error cant read block 37157292 and a whole heap of other blocks, so I guess the disk is knackered? Problem number 2 is that my daughter didn't make any recovery disks so if I replace the hard drive I still need to rebuild the laptop, I can't see anywhere I can download these disks  from DELL , does anybody know how I can get them from Dell? I managed to boot to a linux cd and have saved all my daughters data so at least that's safe. I have tried booting to a windows 7 recovery disk I downloaded but it hangs at the same point I guess it's trying to write to the hard disk.  can anybody help??

It makes no sense to install Windows on a faulty hard drive.You did the right thing and tested the HDD - next step is to get a new one.

Drivers can be downloaded here:

www.dell.com/.../iedhs1

You should actually have a "Diagnostics and Driver utility CD"......

No don't have any CD's thats one of my problems, MY daughter failed to make the recovery disks so now I can't even run recovery from the HD, I need the dell windows 7 disks to rebuild after I have changed the drive. Thanks for the link to the drivers though, pity dell dont stage the win 7 image for download after verifying you are entitled to it! any more thoughts?

en.community.dell.com/.../1454.aspx

There are additional  links from Dell user "natakuc4" on how to reinstall Windows from scratch - can't find them right now...

en.community.dell.com/.../microsoft-windows-and-microsoft-office-downloads.aspx