Running laptop using an iso file of Linux Xubuntu on CD and laptop is running perfectly, so I don’t think its a hardware issue in this case. Restart the machine when prompted and the WAIT!!! I powered on my PC to find it just hanging on the Windows logo during boot. It just stuck on “Starting windows” screen. In the safe mode, it restarted after the classpnp. If it continues to hand when the last card that is left is your graphics card, you might consider buying a new one. After reading a few threads I read about using Msconfig and checking the safe mode option under “Boot”.

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Still want more information? Just disconnect all the cable’s from laptop and powersourcetake out batteries also. Hi, I just wanted to reiterate another posters answer So the bad thing was that I never backed-up my data.

Windows 7 hangs when loading driver “CLASSPNP.sys”

Sign in anonymously Don’t add me to the active users list. I was really stumped on what to do since I’m not very computer savvy.

I’ll just download the drivers from his motherboard site. I do not have a disc for it because it did not come with one, I had the same problem before and restored it, and it worked fine. The best part is that repairing registry errors can also dramatically improve system speed and performance.


Windows 10/7 [SOLVED] – Driver Easy

Don’t give up,do nothing and after a while your pc should restart itself and you should be able to get in with no issues. I have sort of fixed the issue on my computer. Most computers don’t have internal SCSI devices they’re used more on serversso I’m thinking this could be caused by some externally attached device.

This site uses cookies for analytics, personalized content and ads. Restarted and then the system would hang at the strtup, a brief BLOD would show and the computer would restart. Third-party program installation or malware infection may have corrupted the registry entries associated with MSDN Development Platform U.

Thank you everyone for all the help! Saturday, July 28, Posted 18 June – Edited by A Microsoft dummy Wednesday, December 28, 8: Would have made troubleshooting a little easier. I want to thank everyone for their suggestions! Questions related to classpnp.


Several functions may not work. After reboot, Windows continued and finished, but the computer shuts down after a while, without warning.


It helped me tremendously. Trying to install the drivers results in the expected: Please log in to reply. I did not interrupt any windows updates while they were configuring, only the downloads, but maybe he has. Thank you for this excellent fix!

Answer me this though; why would Microsoft program safe mode to show the drivers successfully loaded instead of the next driver it’s trying to load?. I guess the old troubleshooting technique is still a good one to fall back on.

How To Fix Blue Screen Errors (BSOD)

I have the same problem. Windows 7 startup hung up on classpnp. Bought this PC after moving oifff of Craigslist and had worked great for almost a year,but that also means no install disk. Besides above suggestions, please also try the following steps to troubleshoot the issue.

This will bring you to a recovery type menu.