just brew it! wrote:Have you tried clearing your CMOS?
Yes, even flashed the BIOS to the current version
Sounds like it could be an issue with the hard drive. Anything to do with these types of files it's a good idea to run a check disk and do a full scan. If you can't get it to boot (even in safe mode) you should be able to boot from the Windows media (or download the Windows AIK
and create a Windows PE image) and run a checkdisk. If you can boot it's a good idea to run a command "sfc /scannow." It does an integrity check on core windows files (like classpnp.sys) and repairs them if it detects corruption.
To add my anecdotal evidence to restore points I've never had much luck with them. Windows 7 has a fantastic backup utility that you can use to do bare-metal backups (you can even recover to dissimilar hardware if you can't get an exact replacement). Put in an external hard drive and schedule them to run nightly. It will do full data dedupe and you should be able to get months if not years worth of backup history on a drive that's 1.5 to 2 times larger than your total data footprint. Good backups, for the most part, are much better than restore points.
See that's the thing, it points to a broken boot disk. I have SSD as my primary boot disk and again it has never had any issues. I thought maybe there is a busted boot sector or something but again my system is completely stable (I'm using it right now). However if I try to install a sound card (tested video cards and a couple of RAID cards to make sure the PCIe slots are fine, no issues) then I get the classpnp.sys no boot issue.
Agree completely with the Win7 backup tool but I had not chance to use it prior to this disaster. Even with all the clean installs trying to get audio to work on my system I never had the system restore to work and this is why I decided to start this subject. It's so frustrating because I know my tech and yet this is so bizarre and unexplainable its driving me crazy.
Thanks for the replies people.