DPC Watchdog Violation. Laptop won't boot up.

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  1. Posts : 6
    Win10/Win7
       #21

    jdbrady441 said:
    I am 42 hours into a spinrite scan and it has not found any errors. Do you still think this is a hard drive error issue?
    Unlikely. I've scanned the drive while still on Win10, and there were no errors. Now, that I reverted the system back to Win7, it is running just fine on the same drive.
      My Computer


  2. Posts : 10
    Windows 10
       #22

    How did you do the set back, did you do a fresh format / install or use the windows 10 tool. This has been on 10 for over a year. If you used the windows 10 tool did you loose data?
      My Computer


  3. Posts : 6
    Win10/Win7
       #23

    I didn't use Win10 tool - it was probably too late for that.
    I was able to boot into safe mode, and back up the data I needed to the second HD (the system is installed on a SSD drive).
    Then I used the recovery partition to freshly re-install win7.
      My Computer


  4. Posts : 10
    Windows 10
       #24

    Understood. Yeah I thought the restore tool was only 30 days, but in advanced repair options it gives the option to restore back to previous version or something of that nature.

    I gave the option to the owner which direction to go. I think an SSD and a fresh install would be best, she likes win 10 though so I am afraid it would happen again with an update
      My Computer


  5. Posts : 6
    Win10/Win7
       #25

    Oh, in my case it is my own machine, so the decision making was slightly easier :)
      My Computer


  6. Posts : 1
    Windows 10 Pro
       #26

    I have ran into this with several E6520s lately after the big 1607 update. I have two of them in my shop right now. When I find the fix, I'll edit this post to include it.

    EDIT: Looks like the fix was removing both the Intel and Nvidia video drivers after booting into safe mode with command prompt. Both of these machines had NVS 4200 chips along with the Intel integrated video. Both were very slow to boot the first time after doing this, but after reinstalling the correct driver's from Dell both are back to normal now.
    Last edited by johnrhance; 07 Oct 2016 at 06:05.
      My Computer


  7. Posts : 10
    Windows 10
       #27

    so your machines were dual video card? I am just trying to figure this one out. I did a fresh install on a SSD and ran updates, same issue. This one only appears to have the intel chipset

    EDIT: Looks like the fix was removing both the Intel and Nvidia video drivers after booting into safe mode with command prompt. Both of these machines had NVS 4200 chips along with the Intel integrated video. Both were very slow to boot the first time after doing this, but after reinstalling the correct driver's from Dell both are back to normal now.[/QUOTE]
      My Computer


  8. Posts : 81
    10
    Thread Starter
       #28

    johnrhance said:
    I have ran into this with several E6520s lately after the big 1607 update. I have two of them in my shop right now. When I find the fix, I'll edit this post to include it.

    EDIT: Looks like the fix was removing both the Intel and Nvidia video drivers after booting into safe mode with command prompt. Both of these machines had NVS 4200 chips along with the Intel integrated video. Both were very slow to boot the first time after doing this, but after reinstalling the correct driver's from Dell both are back to normal now.
    Well, my other 6520 is now doing this same thing. Finally got into Safe Mode after an hour of trying. Hopefully these drivers will fix it. *fingers crossed*
      My Computer


  9. Posts : 81
    10
    Thread Starter
       #29

    Well, I got booted up once so that worked. Went to Dell's site and this model isn't listed for Windows 10. I checked Windows 8/64 and it has a driver for the Intel card but the nVidia card just has some sort of security update. I changed to Win7/64 and found a driver there so I guess I'll try that one...
      My Computer


 

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