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Windows 7 Freezing On Startup Classpnp.sys

I concur, clean both the CPU heat spreader and the heat sink and reapply the thermal compound. Friday, May 01, 2015 12:25 PM Reply | Quote 0 Sign in to vote Did not work in my case. The motherboard I guess? Also, when going into safe mode, the last thing Windows lists (CLASSPNP.SYS in this case) is the last thing it successfully loaded, so it's hanging on the 'next' thing (that it

I just let it run. Browsing through this thread it doesnt seem to have one specific reason, but i hope my comment helps someone out there! I used this tutorial to install W7 on the USB HD - Install Windows 7 on a USB Stick/Flash drive Techno-Cranio Idiocracy Also, I am trying to run W7 from Wednesday, October 31, 2012 6:35 PM Reply | Quote 0 Sign in to vote I made an upgrade in my bios and this error started.

WrackageNov 1, 2013, 11:05 AM I am encountering the same problem on my desktop PC, but only under certain circumstances.The computer boots fine in case I unplug it after the prior I got the classpnp problem but none of the solutions helped for me. Acer, HP, Compaq etc) Press either alt + F10 or alt + F11. I could not find my original boot disc, but I tried running off of a Windows 7 Upgrade disc that I had, which I assumed would work the same.

It was solved the problem. The laptop would *sometimes* boot but most often NOT (after swapping ram chips, or signing in to a different user after a successful (rarely) boot in safe mode etc. I used another hard drive so I can do a clean install of Windows 7, it even hangs when I boot from the Windows 7 DVD!!! Change the SATA setting from auto to AHCI.

Finally I found a solution, though it was pretty tricky. It partially started up and looked like it wasn't doing anything - just a blue Windows background. In the image below you can see that the green progress bar, when the image is finished burning the bar will be filled. 6. Update: I inserted the same SDHC card back and it now boots fine.

Turned out to be an SDHC card. This will take several minutes. Classpnp.sys will cause the system to hang. I had just replaced a bad MoBo with the same exact one,which i have done with systems before,but now gets stuck on the dreaded classpnp.sys.

Not the answer you're looking for? Just update the driver or remove the virus. My computer: Acer Aspire 5536 Athlon X2 64 Win7 32bits Proposed as answer by TheVoIP Saturday, January 12, 2013 5:03 AM Saturday, May 21, 2011 5:14 PM Reply | Quote 0 With no other option available, I did a hard reset.

thanks in advance watsondsSep 29, 2013, 10:37 PM Did you ever solve this? The system hangs up the same way here as if it were starting from the hard drive. - I have also removed the battery from the motherboard to reset the bios. However, the system stopped at the Starting Windows animated logo. All rights reserved.Newsletter|Contact Us|Privacy Statement|Terms of Use|Trademarks|Site Feedback ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: Connection to

Sometimes it can happen if you plug any device while system is booting (in that case try to unplug all devices except important ones, and restart). Click Commmad Prompt, type in:rename c:\windows\system32\drivers\classpnp.sys classpnp.oldNote: Iassume that your windows is installed on C drive. This is a genuine untouched image which is safe to download. have a peek here This made no change. - Finally, I have made a visual inspection of all hardware components.

I might at this point remind people that the driver listed is the last one to successfully load, so don't bother trying to troubleshoot that one. Mine had two choices, 'compatibility' and 'AHCI'. after some research i found a solution that helped.

Sunday, March 09, 2014 7:07 AM Reply | Quote 0 Sign in to vote I was getting the same error.

Put the disk into the drive and but it up during windows start up.You also need to download a replacement classpnp.sys file. Most computers don't have internal SCSI devices (they're used more on servers), so I'm thinking this could be caused by some externally attached device. I initially had the same problem as most of you, pc going into black screen after 'windows starting' screen and hanging at the classpnp.sys when trying to boot in safe mode. However, when at the "Loading System Files" screen, the process gets stuck after "Loaded: \Windows\system32\drivers\CLASSPNP.SYS.I have searched various forums and have found other users with this or similar problems, but their

So, the half of the answers are NOT TRUE. –Jet Mar 23 '13 at 11:13 1 You guys are just making wild assumptions. Restarted and then the system would hang at the strtup, a brief BLOD would show and the computer would restart. Saturday, December 12, 2015 6:31 PM Reply | Quote 0 Sign in to vote This Guy is a Genius even after 3 years he is still helping our fellow geeks. Check This Out It worked.

I personally prefer Hiren's BootCD Here is the download page. After you have downloaded the ISO image you want to burn right click on the Start orb, then choose Windows Explorer. 3. Put it in the bad Lenovo and BSOD after CLASSPNP.SYS. I was left with doing a format and fresh install.

Instead, it brings up the same Windows select mode as a result of it not shutting down properly (giving the option for safe mode or normal mode). And then give a shot to DLL Suite and fix the associated dll file errors in your PC. If you think this may help, let me know and I can upload them.My hard disc is a Patriot Torqz 2 64GB SSD and my motherboard is a Gigabyte M68MT-S2. Click startup repair & let it do its' thing.

It still keeps staying at classpnp.sys and when I hit F8 and hit "Last Known Good Configuration (advanced)" it seems to be able to get trough and it says it's actually Entered BIOS - ADVANCED - SYSTEM CONFIGURATION - SATA CONTROLLER MODE - and changed it to COMPATIBILITY mode. Thanks, guys! itguy123Jan 14, 2014, 1:25 PM hi i had the same problem - with hp dv6 - win 7 .

Best Answer » If you try running Windows 7 in Safe Mode, it fails at Classpnp.sys.