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Windows 7: Windows 7 Ultimate x64 won't load past CLASSPNP.sys.

01 Apr 2013   #1
liamwli

Windows 7 Home Premium x64
 
 
Windows 7 Ultimate x64 won't load past CLASSPNP.sys.

I recently installed windows XP mode onto my computer, and after shutting it down and having the updates for that install I booted directly into an Ubuntu live disc, and restored the main Windows MBR.

When I had done that, and rebooted, windows won't load past the CLASSPNP.sys file, and I don't know how to fix it.

It's an Asus notebook - no CD drive, and there isn't a windows recovery environment, as Asus are idiots and decided to replace it with their own version that reinstalls the entire windows OS without any way of getting your data back (IDIOTS!).

So, how can I fix this annoying error and boot into windows? I have an Ubuntu disc on a pen drive that I'm currently using to post this, but like I said I don't have a windows recovery environment.

Liam


My System SpecsSystem Spec
.
01 Apr 2013   #2
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

CLASSPNP.sys is the last driver it loads and displays on screen... quite normal and not the source of the problem!! Why do you see CLASSPNP.sys??? Look like you're booting to "safe mode"(?)

Did you install xp mode in win7, or did you install winxp as dual boot option?
Why did you save and restore MBR???
My System SpecsSystem Spec
01 Apr 2013   #3
liamwli

Windows 7 Home Premium x64
 
 

Quote   Quote: Originally Posted by Kaktussoft View Post
CLASSPNP.sys is the last driver it loads and displays on screen... quite normal and not the source of the problem!! Why do you see CLASSPNP.sys??? Look like you're booting to "safe mode"(?)

Did you install xp mode in win7, or did you install winxp as dual boot option?
Why did you save and restore MBR???

Well, I tried booting it normally twice, but it wouldn't get past the loading windows screen, so I did it in safe mode. I tried to install the xp mode inside windows 7 - the one that MS offers on their site?

I had the Ubuntu grub bootloader/mbr installed - I wanted to remove the Ubuntu partition however, so I replaced it with the windows one.
My System SpecsSystem Spec
.

01 Apr 2013   #4
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by liamwli View Post
Quote   Quote: Originally Posted by Kaktussoft View Post
CLASSPNP.sys is the last driver it loads and displays on screen... quite normal and not the source of the problem!! Why do you see CLASSPNP.sys??? Look like you're booting to "safe mode"(?)

Did you install xp mode in win7, or did you install winxp as dual boot option?
Why did you save and restore MBR???

Well, I tried booting it normally twice, but it wouldn't get past the loading windows screen, so I did it in safe mode. I tried to install the xp mode inside windows 7 - the one that MS offers on their site?

I had the Ubuntu grub bootloader/mbr installed - I wanted to remove the Ubuntu partition however, so I replaced it with the windows one.
Try booting win7 normally. You see the windows animation screen with fireflies? You see the logon screen? Does it crash? Tell exactly what happens
My System SpecsSystem Spec
01 Apr 2013   #5
gregrocker

 

Boot into Windows 7 DVD System Recovery Options or Windows 7 System Repair Disk to Mark Win7 or it's 100mb System Reserved Partition (preferred if you have it) Active.

Then run Startup Repair - Run up to 3 Separate Times until Windows 7 starts and it's boot partition holds the System Active flags.

If this fails when System Reserved partition is marked Active, move the Active flag to Win7 partition itself and then try the 3 repairs again.

Be aware that sometimes GRUB can corrupt Windows 7 beyond repair when on the same HD. If problems persist I would delete it completely and then for any future Linux Dual Boots use separate HD's booted only via BIOS, or Dual Boot - Windows 7 and Linux - Windows 7 Forums.

If all else fails it may be necessary to wipe the boot sector of interfering code using Diskpart Clean Command before Clean Reinstall - Factory OEM Windows 7 which steps are same for retail.
My System SpecsSystem Spec
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 Windows 7 Ultimate x64 won't load past CLASSPNP.sys.




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