VXD --- Error? Blue Screen on Bootup

Whenever I boot my computer I get the error message with the blue screen saying "An exception 0E has occurred at 0028:04A90000 in VxD ---. This was called from 0028:C14B3F3D in VXD ---. ..." Any ideas as to what this means. I have already tried running sfc and MSConfig in safe mode without any problems. Safe mode seems to work just fine. I have already tried to remove all apps loading in Startup.
FotelAsked:
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Jason_SCommented:
Try booting to Safe Mode, and disabeling devices in Device Manager either one at a time, or a handfull at a time.  Then reboot, and see if it will boot normaly.  If so, then go back, and enable devices one at a time until it will no longer boot normaly.

This can take a bit to get through, but you should find one device to be the problem.  When you find it, let us know which one it is, and we will continue.
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FotelAuthor Commented:
Jason S-

There really isn't any devices for me to disable. All the listed devices are needed for the computer to run. (ie. hard drive, floppy, video card, etc...)

This all started when I installed ACAD2000. I tried uninstalling it in Safe Mode but that didn't do anything. Any other ideas?
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FotelAuthor Commented:
I just checked the bootlog, everything loaded correctly except the fonts. Hope this helps...
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FotelAuthor Commented:
I just checked the bootlog, everything loaded correctly except the fonts. Hope this helps...
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majusCommented:
Please do the following before proceeding any further.  Make sure you have a boot disk or a startup disk.

Boot to dos and type the following commands:

cd\windows
attrib -h -s -r system.dat
copy system.dat system.001
attrib +h +s +r system.dat

Now Continue

Clean up your registry, or particularly the Enum keys otherwise known as your devices' registry entries.

The easiest way to do this is to go to safemode and go into the Device Manager through the System icon in Control Panel.  Click the +'s to expand the lists and look for duplicate entries.  Remove all cases of devices with duplicate entries.  If no duplicate entries then you may want to remove some of the devices like the video card, soundcard, modem, netcard, and such just for the heck of it.  They should all redetect on the next successful boot into windows so have drivers available if needed.

Hopefully this will help you get back into windows or successfully reinstall and nothing further will be needed.


If that doesn't help, I'd go a bit deeper in.  

Run Regedit and navigate to HKEY_LOCAL_MACHINE\ENUM
Right Click on ENUM and click delete, then close regedit, then reboot.

This literally deletes all devices in Device Manager so everything will redetect on next successful boot.


If that doesn't do it, then there's one more thing to try.

Boot to DOS and type the following:

cd\
cd windows
attrib -h -s -r system.dat
ren system.dat system.002
del system.dat
cd\
attrib -h -s -r system.1st
copy system.1st c:\windows\system.dat
attrib +h +s +r system.1st
cd windows
attrib +h +s +r system.dat

Then reboot

The system.1st is the very first registry ever created on the system.  Everything redetects... including Control Panel, Time, everything.


If none of this works, boot to DOS and type the following:

cd\
cd windows
attrib -h -s -r system.dat
del system.dat
copy system.001 system.dat
attrib +h +s +r system.dat

Now the registry is back to how it was before we did anything at all.

At this point you need to seriously figure out how to get your data off that Hard Drive temporarily and format that sucker to try a fresh install.

If that bombs then you've definitely got a hardware problem.
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dew_associatesCommented:
Fotel, give this a try, it's a little less drastic approach.

Have your Windows 98 CD Rom disk handy.

1.      Reboot the system and either hold the Ctrl key down right after memory post or when you see the “Starting Windows…” dialogue, touch the F8 key.
2.      Choose #5 Command (MSDOS)  Prompt only.
3.      At the dos prompt, change directories to X:\Windows\Command, with “X” being the directory where Windows is installed.
4.      Now type SCANREG/FIX <enter>
5.      Follow the dialogue and let Scanreg review your registry and make any necessary repairs.
6.      When Scanreg is done, reboot into Windows.

NEXT:

1.      Insert your Windows 98 CD Rom disk into the drive.
2.      Click Start, Run and type  SFC <OK>
3.      This will start the System File Checker.
4.      Click on the settings button and select “Check for changed and deleted files” and click OK to start.
5.      Replace any files that are detected as bad or corrupt. Also watch the file dates carefully and always try and replace older files (pre-May 1998) with newer files, and most important, always use the latest version numbers for all files. SFC will copy the old file to X:\Windows\Sysbckup in case you need it back.
6.      When SFC is done, reboot the system and note the performance.


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majusCommented:
I could go for that dew.... learnin everyday.... i see a lot of ppl depending on the SFC... does it really fix that many probs?
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Jason_SCommented:
As far as disabeling the devices in Device Manager, yes, your sound card, network, and modem devices will not function, but the video, hard drive, mouse (normaly), and keybaord will still function.  This is done only for testing.

Do try some of the other suggestions also.
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dew_associatesCommented:
Yes it does Majus. There are a number of tools incorporated in Win98 for the average user that were only available to developers in previous Windows versions.
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Jason_SCommented:
Dennis, is such a thing available for use with 95?
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dew_associatesCommented:
Yes there is Jason. It was released to developers on a tools CD.
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FotelAuthor Commented:
I am increasing the points. I have tried all the solutions suggested so far. Everything short of a reformat and nothing has worked. I hope somebody has some new ideas.
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dew_associatesCommented:
Fotel, the problem here (based on the error you are receiving) is that an application is attempting to access a protected memory space, which in turn results in a blue screen error.

This can happen for several reasons, a memory problem, a regsitry problem, a failed installation of the program etc. Although your system may have been running fine before doesn't rule out that a memory module has an impaired chip, it just means that possibly your system may not have been using that particular chip on the module.

Although I try and avoid recommending that anyone reformat and start over, sometimes it is effective in correcting a regsitry error. If scanreg didn't find a problem earlier, then a clean install would be the next step. However, I would not ignore the possibility of a bad memory chip.
Dennis
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FotelAuthor Commented:
I tried everybody's suggestions, but Majus's suggestion worked the best. It is still a pain because I have to reinstall some apps but replacing the system.dat did the trick. Thanks a lot!
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