Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Computer doesnt start. BSOD after loading classpnp.sys

18 Feb 2016   #11

Windows 7 Ultimate x64

I dont have a way to backup anything since my drive is 500GB for my OS drive is more than half full and the other 250GB drive is too full already as well. and the other drives i have laying around are also too full so im stuck with it till it goes out.
90% of it is music, videos, and pictures. and the rest is games and tid-bits of other things and the OS.
I also have loads of games on the other drive as well. (the "other" drives i have that aren't connected have games and photos and stuff on them as well.. but still not enough space to do a backup of everything on this drive..

i also have my two drives inter-connected with shortcuts to programs back-and-forth-ing between the drives so changing out the drive would break a lot of program shortcuts and game shortcuts (and a few folder shortcuts.)
I also have my pagefile split between both drives for enhanced performance (dedicated pagefile partition at the far edge of both drives around 4GB each)
for total of 8GB pagefile with reasonable speed in chance that my computer runs out of physical memory (to close the offending program)
I do keep my drives clean and defrag on an average regular schedule to keep them in shape and keep the performance up

My System SpecsSystem Spec
29 Apr 2016   #12

Windows 7 Ultimate x64

been a few months and no changes. still running just fine. I've read that a total low level format can heal mysterious bad sectors that just appear like this. is that possible?

I might have to purchase a 2TB drive to store all my files though. since I've accumulated an enormous amount of documents videos pictures and games.
My System SpecsSystem Spec
01 May 2016   #13

Win7 Ultimate X64

TBH I'm not 100% sure, I just always work on the side of caution
My System SpecsSystem Spec


 Computer doesnt start. BSOD after loading classpnp.sys

Thread Tools

Similar help and support threads
Thread Forum
System hangs at boot after loading CLASSPNP.SYS
Hi, i restarted my computer yesterday after i was getting bad frames in a game i was playing, and after that it wont boot up. i let it run for ~10 hours overnight and woke up to the same thing. i have searched and searched for the resolution but to no avail. I am able to boot into the WinRE...
General Discussion
Windows 7 laptop not starting,hangs on classpnp.sys when loading safe
Model: HP g7-2204sd OS: Windows 7 Ultimate HDD swapped for SSD 3 years ago So my father's laptop has been working without problems for 3 years now up until now. It will no go beyond the "starting windows" loading screen and when I try to boot it in safe mode it will hang on loading...
General Discussion
OS not loading, Safe Mode won't boot past classpnp.sys
I replaced my Intel Q6600+DP35DP mobo with an i5-4690K and Asus Z97 K. I get a "missing operating system" message. When I boot up with a Windows 7 64 bit installation USB and then Repair Your Computer, it does find the OS on the hard drive still. I tried following this guide for repairing the...
General Discussion
Computer freezes after loading CLASSPNP.sys
I'm not entirely sure where to post this, but windows seems to be treating it as a BSOD (Shows me the "Unexpected shutdown" summary when I boot it in safe mode, creates a kernel dump) so I'll post it here. My mom's computer has started to hang on boot. It will reboot, attempt to do a startup...
BSOD Help and Support
BSOD while classpnp.sys classpnp.old (Safe Mode)
Hello, I have recently taken the hard drive of my laptop and connected it to my desktop computer. The name of the hard drive is ; WD2500B EVS - 60 USTO (250GB). However when I try to boot from using windows 7 than I get a BSOD but when I boot it using ubuntu it works. The Hard Drive is dual...
BSOD Help and Support

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 07:18.
Twitter Facebook Google+