Hi, The file in question is: \Windows\system32\drivers\VmsProxyHNic.sys, error 0xc000007b The file is there. I'm using an SSD. From a bootable USB I've tried: chkdsk C: No errors reported. Startup Repair - Says it couldn't repair my PC. Uninstall latest feature - Says it can't Restore from a prior point - There are none Copying the file in question to a .bak, then deleting the original and copying it back - No effect Can't boot into Safe Mode Any other things I can try? I'd like to get this to boot again so I can at least see what programs I have installed. Thanks.

Great to hear. Nice job. It appears PCR has covered the other things already.

You are welcome. Sounds great. I'm so glad to hear it. You did well in a really tough battle -- great victory! (1) Yep, make that system image. (a) A Recovery USB drive (type into Search) can be used to restore the image, if/when necessary, at "Troubleshoot > Advanced options > System Image Recovery". It also has a special Reset capability ("Troubleshoot > Recover from a drive") which I think gives you back the version of Windows (that made the drive) instead of the latest version. It might also contain the 3rd-party apps that came with the computer (if made when they were still installed), but I'm unsure. All other 3rd-party apps & files are deleted. (b) But you can also recover an image using your Win10 Installation USB drive (Repair your computer). The Reset on this one normally will upgrade to the latest version of Win 10. It will not contain 3rd-party apps. But I think it might also offer a Factory Reset, if the computer manufacturer supplied a partition for it. (c) And, of course, Shift+Restart will boot to the internal recovery environment where it can also be done. But it's best to have one of the other two around because this one will not restore the recovery partition (deemed in use). It also will not format the HDD that holds the recovery partition, if that proves to be necessary. (2) Restore Points will begin anew with the repair-install. But check at Restore (type into Search), System Protection tab, that it is still turned on... Automatic restore points are made before certain activities such as a Windows Update & maybe some driver installations. Making a Windows system image backup also seems to make an automatic restore point. But you should make one of your own before doing anything big or check that a timely one is there. These are less powerful than system images which cover all of the partitions.

SUCCESS!!! I re-ran the repair-install last night and last I checked it was at 64% (previously hung at 31%). This morning it greeted me with the login page and I was able to log-in (with most everything still disabled, which is fine). I then was able to run an SFC /scannow and it told me it found some corrupt files, but this time it was able to fix them! After I rebooted, I was able to re-install my graphics card driver and now I'm up and running! Only startup errors I'm seeing now are the WudfRd driver and SQL Server. I'll try to diagnose those on my own unless you have some ideas. At this point I'll make a system image, probably from Windows itself. A couple of questions: Do I need to make a recovery USB? What about restore points? Do I need them? Is that something I set up myself or is Windows supposed to take care of that for me? When would I use a restore point vs. a system image restore? Thanks again you both have been wonderful to spend your time helping.

Windows 10 can't boot - Critical system driver is missing or contains errors

Anonymous

Hi,

The file in question is: \Windows\system32\drivers\VmsProxyHNic.sys, error 0xc000007b

The file is there. I'm using an SSD. From a bootable USB I've tried:

chkdsk C: No errors reported.
Startup Repair - Says it couldn't repair my PC.
Uninstall latest feature - Says it can't
Restore from a prior point - There are none
Copying the file in question to a .bak, then deleting the original and copying it back - No effect
Can't boot into Safe Mode

Any other things I can try? I'd like to get this to boot again so I can at least see what programs I have installed.

Thanks.

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Answer accepted by question author

Ramesh 181.4K Volunteer Moderator

After running that command, have you checked the CBS log to see which components are missing?

And regarding the failed repair installation, you can check setupact.log and setuperr.log in the Panther folder. Or download SetupDiag from this link and run it. The tool collects the setup logs and saves them into a zip file named Logs.zip on your desktop.

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Answer accepted by question author

Anonymous

(1) I still say to try the repair-install again. It must be run from a Normal Boot (not Safe Mode), if you can get back there. Do the clean boot first, which unfortunately will require a 2nd boot to Normal Mode before you can do the repair-install. (But possibly the clean boot can be set up in Safe Mode, then boot to Normal Mode.). Definitely, wear a neckless of garlic this time. But a repair-install is the thing.

(2) Had you made a system image after that successful boot to Normal Mode, you'd have locked the goodness in. Hopefully, you can get back there easily, though. Restore Points aren't as powerful. For one thing, a repair-install wipes them out.

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75 additional answers

Ramesh 181.4K Reputation points Volunteer Moderator

2023-01-05T03:16:47+00:00

Great to hear. Nice job.

It appears PCR has covered the other things already.
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Anonymous

2023-01-05T00:57:05+00:00

You are welcome. Sounds great. I'm so glad to hear it. You did well in a really tough battle -- great victory!

(1) Yep, make that system image.

(a) A Recovery USB drive (type into Search) can be used to restore the image, if/when necessary, at "Troubleshoot > Advanced options > System Image Recovery". It also has a special Reset capability ("Troubleshoot > Recover from a drive") which I think gives you back the version of Windows (that made the drive) instead of the latest version. It might also contain the 3rd-party apps that came with the computer (if made when they were still installed), but I'm unsure. All other 3rd-party apps & files are deleted.

(b) But you can also recover an image using your Win10 Installation USB drive (Repair your computer). The Reset on this one normally will upgrade to the latest version of Win 10. It will not contain 3rd-party apps. But I think it might also offer a Factory Reset, if the computer manufacturer supplied a partition for it.

(c) And, of course, Shift+Restart will boot to the internal recovery environment where it can also be done. But it's best to have one of the other two around because this one will not restore the recovery partition (deemed in use). It also will not format the HDD that holds the recovery partition, if that proves to be necessary.

(2) Restore Points will begin anew with the repair-install. But check at Restore (type into Search), System Protection tab, that it is still turned on...

Automatic restore points are made before certain activities such as a Windows Update & maybe some driver installations. Making a Windows system image backup also seems to make an automatic restore point. But you should make one of your own before doing anything big or check that a timely one is there. These are less powerful than system images which cover all of the partitions.
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Anonymous

2023-01-04T17:07:56+00:00
SUCCESS!!! I re-ran the repair-install last night and last I checked it was at 64% (previously hung at 31%). This morning it greeted me with the login page and I was able to log-in (with most everything still disabled, which is fine). I then was able to run an SFC /scannow and it told me it found some corrupt files, but this time it was able to fix them!

After I rebooted, I was able to re-install my graphics card driver and now I'm up and running! Only startup errors I'm seeing now are the WudfRd driver and SQL Server. I'll try to diagnose those on my own unless you have some ideas.

At this point I'll make a system image, probably from Windows itself. A couple of questions:
1. Do I need to make a recovery USB?
2. What about restore points? Do I need them? Is that something I set up myself or is Windows supposed to take care of that for me? When would I use a restore point vs. a system image restore?
Thanks again you both have been wonderful to spend your time helping.
Was this answer helpful?

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