Windows 7 64 bit boot problems.

Hey, my windows 7 will not boot up any more. It asks if i want to repair windows 7 or resume as normal.
If I resume as normal it boots to just after the windows logo where a black screen appears with an unmoveable curser then restarts a few seconds after
.
If i click repair it says windows cannot find any problems.
In safe mode, it boots to classpnp.sys then crashes. I have backed it up, got the file off my laptop, and copied it across and the same thing happens then if I delete it just blue screens.
The windows seven disk says I haven’t got a system restore point and if i try repairing it using the disk and it says windows is fine.
Is there any way i can tell whats wrong and fix it and get my pc working as normal again ?

Specs:
1tb Samsung f3
1090t amd x6 3.2ghz
8gb corsair vengeance ram
Psu = powercool 650w
Gtx 460 1gb.
Answer #1
buddha102 replied: Is there any way i can tell whats wrong and fix it and get my pc working as normal again ?
Format HDD and install Windows again!
Answer #2
boot to the windows disk
hit “repair your computer”
select “command prompt”
then run
chkdsk /f
classpnp.sys
this is the last file to load successfully so the problem is not that file, it’s the next one trying to load, so no way to tell
Answer #3
I’d recommend the chkdsk command also, it fixed many-a-computer that I worked on…
However, your problem seems GFX related, as you stated that it goes into windows, shows the mouse pointer (but cant move) and then restarts a few seconds later?
Is this an onboard/onchip GFX? Hopefully not… if not, remove the gfx card and try onboard VGA for now…
Here’s what I would do next (if it’s not the VGA chipset causing the problem) :
1. Run Windows Memory Diagnostic or Memtest86 from a linux boot cd.
2. Run the CHKDSK command
3. Disable automatic restart on system failure and see what DLL is causing this. – Replace the DLL
4. If all else failed after memtest passed, chkdsk passed and dll replaced – format and reinstall
Answer #4
Thanks edwoodweb.
I’ve just changed the sata port and the same thing happens.
I’ve just tried that and and it says
“the type of file system is ntfs. cannot lock current drive ”
Answer #5
buddha102 replied: Thanks edwoodweb.
I've just changed the sata port and the same thing happens.
I've just tried that and and it says
"the type of file system is ntfs. cannot lock current drive "
See if you can find Hiren’s Bootcd 9.6 somewhere (the new versions suck)
On that bootcd is chkdsk and since it won’t lock the drive while booting from that cd, you’ll be able to run chkdsk…. also try and google for ways to force an unmount of the drive in the windows installation….
Maybe boot from an XP cd and run chkdsk from that by pressing “r” when the setup portion begins – it worked for me a couple of times… then after it does some repairs try the windows 7 chkdsk again to fix additional problems that the XP version can’t detect
EDIT : Sorry I see you do have a GFX card installed… If your MB has onboard VGA try that, if it doesn’t have onboard, try a different GFX card. This could be driver related. If it boots into windows remove the nVidia and Physics drivers and try the card again, if it still fails test the card in a different system… This is just all trial and error – eliminating the possible cause of the problem
Answer #6
Thanks for the reply i have a boot disk i will try now and edit after. Im going to try the windows xp thing first tho
Answer #7
oh by the way IF windows XP detects your HDD (If your not running your HDD in AHCI or RAID or SATA NATIVE mode)
run this command : chkdsk /p /r
also try that command in windows 7’s recovery console
Answer #8
"the type of file system is ntfs. cannot lock current drive "
what drive letter was listed at the command prompt ?
try
chkdsk c: /f
Answer #9
edwoodweb replied: "the type of file system is ntfs. cannot lock current drive "
what drive letter was listed at the command prompt ?
try
chkdsk c: /f
Use this one – it will force chkdsk to run when you try to boot into Windows