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Windows Splash to black screen with mouse pointer...Mup.sys hang

Discussion in 'Windows XP' started by GATJA, May 8, 2010.

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  1. GATJA

    GATJA Thread Starter

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    My computer (Dell Dimension 2350 running Windows XP SP2, no new hardware or software added in years) turns on, asks me if I want to 'Start Windows Normally', 'Last Known Good Config' and 3 different Safe Modes. It doesn't matter which one I pick, it always starts the Windows splash screen, then goes to a black screen with my mouse pointer (which I can move, but cannot right or left click). Also, the keyboard controls don't seem to work, no ctrl+alt+del, nothing (though if I press shift 5 times it gives me the beep atleast letting me know the keyboard is working). Safe Modes do something a little different, but end up in the same place as the other modes. Safe mode will hang on Mup.sys for a long while before it goes to the black screen with the mouse pointer.

    I have pulled off the user files (pictures, documents and so on) while connecting the drive to a different computer and making it a slave. Also while it was connected to the other computer, I ran MalwareBytes on it. It found a trojan on that drive and cleaned it up. I thought that may be it, so it booted the hd as a master in it's own box. I still get the same thing as before (black screen with mouse pointer).

    I made a BartPE boot CD and booted the computer to that. I ran a chkdsk on it then restarted with a normal boot. I still got the same black screen and mouse pointer. I booted with BartPE again and checked to see if Explorer.exe existed anymore. It was there.

    Now I am stuck. I think it may be something in the registry, but I am not sure. I found something on the internet saying to check if you have these 2 registry entries (HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe and HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\iexplorer.exe) and to delete them if you do, but I didn't have those in my registry.

    Can I save this hard drive or do I have to put a fresh install of the OS on it?
     
  2. IsolatedSnail

    IsolatedSnail

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    If you have a Windows disk available you can try doing a windows repair. The mup.sys hang is quite common on some of the older dell laptops with the same symptoms you describe I can normally boot an XP cd and do a windows repair to fix the problem.
     
  3. GATJA

    GATJA Thread Starter

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    All I have is the XP reinstall disk from Dell. I tried it, but it only lets me reinstall and do a couple other things. I can't find anything that repairs or fixes in it's menu. I also read that you can hit 'r' to get into a recovery console, but when I hit r when I have the install screen up, nothing happens.
     
  4. jrbuergel

    jrbuergel

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  5. GATJA

    GATJA Thread Starter

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    Ok, found an XP disk. I did a FIXBOOT and a FIXMBR and....nothing changed. When I did the FIXMRB it told me that the drive seemed to be missing something, but whatever it did, it didn't fix it. And it still hangs at Mup.sys.

    I already ran a chkdsk through my BartPE boot up. Does anyone know if that is the same as the chkdsk /r ran in the Windows Recovery Console? Or should I just do it through Windows Recover for fun and giggles?

    I am about ready to wipe it an reinstall XP...
     
  6. GATJA

    GATJA Thread Starter

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    I tried chkdsk /r this morning. It said it found 1 or more errors and fixed them. When I rebooted, I just got the same options to boot Windows and the same black screen with the mouse pointer...I think it may be time to give up.
     
  7. jrbuergel

    jrbuergel

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