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.

iorate.sys is the LowerFilters driver. If it's missing, Windows won't load. C:\Windows\System32\drivers> dir iorate.sys Volume in drive C has no label. Volume Serial Number is 1098-21C4 Directory of C:\Windows\System32\drivers 06/10/2021 06:53 PM 57,168 iorate.sys 1 File(s) 57,168 bytes 0 Dir(s) 81,772,150,784 bytes free C:\Windows\System32\drivers>certutil -hashfile iorate.sys SHA1 hash of iorate.sys: c0358e1e3739a4beb900c72d1d1f7561c8beb07a CertUtil: -hashfile command completed successfully.

It does sound like it's worth a try. Good idea. If it does something, I would then try to reboot before trying the offline DISM. If a boot is achieved, then I'd do DISM & SFC online. I wish him luck.

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 181.6K 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 181.6K Reputation points Volunteer Moderator

2022-12-29T02:46:20+00:00
iorate.sys is the LowerFilters driver. If it's missing, Windows won't load.

C:\Windows\System32\drivers>dir iorate.sys

Volume in drive C has no label.

Volume Serial Number is 1098-21C4

Directory of C:\Windows\System32\drivers

06/10/2021 06:53 PM 57,168 iorate.sys
```
           1 File(s)         57,168 bytes 

           0 Dir(s)  81,772,150,784 bytes free 
```
C:\Windows\System32\drivers>certutil -hashfile iorate.sys

SHA1 hash of iorate.sys:

c0358e1e3739a4beb900c72d1d1f7561c8beb07a

CertUtil: -hashfile command completed successfully.
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Ramesh 181.6K Volunteer Moderator

Parameter	Description
/RevertPendingActions	If you experience a boot failure, you can use the /RevertPendingActions option to try to recover the system. The operation reverts all pending actions from the previous servicing operations because these actions might be the cause of the boot failure. The /RevertPendingActions option is not supported on a running operating system or a Windows PE or Windows Recovery Environment (Windows RE) image. Important: You should use the /RevertPendingActions option only in a system-recovery scenario on a Windows image that did not boot.

Parameter

Description

/RevertPendingActions

If you experience a boot failure, you can use the /RevertPendingActions option to try to recover the system. The operation reverts all pending actions from the previous servicing operations because these actions might be the cause of the boot failure. The /RevertPendingActions option is not supported on a running operating system or a Windows PE or Windows Recovery Environment (Windows RE) image. Important: You should use the /RevertPendingActions option only in a system-recovery scenario on a Windows image that did not boot.

This command is worth trying:

DISM /Image:C:\ /Cleanup-Image /RevertPendingActions

How to Fix No Boot After Windows Updates | Dell US: https://www.dell.com/support/kbdoc/en-us/000202880/how-to-fix-no-boot-after-windows-updates

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Anonymous

2022-12-29T05:18:58+00:00

It does sound like it's worth a try. Good idea. If it does something, I would then try to reboot before trying the offline DISM. If a boot is achieved, then I'd do DISM & SFC online. I wish him luck.
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