Question

Q: Backup Error 0x8078011E - EFI system partition (ESP)

Win 8 on Dell XPS 8500.  Started having problem with Windows Backup.  Backup set for each day.  Some backups no problem.  Sometimes get this error message ...
The last backup did not complete successfully.
Windows Backup failed to get an exclusive lock on the EFI system partition (ESP).  This may happen if another application is using files on the ESP.  Please retry the operation.
Details:  Access is denied.
Error Code:  0x8078011E



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Hi mate,


To find if another application is causing this issue, a clean boot is the best, what I suggest. That is the easiest way to find any conflicts on the computer. See this link:


support.microsoft.com/kb/929135

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I have a Dell laptop running Windows 8 and just started getting this same error message.  Even though I get this "Backup Failed" message, when I select "Restore" (files or folders) everything seems to be there and I am able to access the files.  So I'm not sure just what files (if any) are not being backed up.  Would appreciate any advice on this.

 

 

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This is a domain controller and not safe ot good to resart it.

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A few days ago, I had this same error pop-up on a Dell (hmmm) system. I have done the Clean Boot (MANY TIMES) and nothing changes - still can't get exclusive lock on the ESP. I'm about to head into the unknown field of 3rd party backup / restore which I DON'T WANT TO DO because I have used MSoft's solution for YEARS and KNOW it works... OK... USED to work !!!

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A few days ago, I had this same error pop-up on a Dell (hmmm) system. I have done the Clean Boot (MANY TIMES) and nothing changes - still can't get exclusive lock on the ESP. I'm about to head into the unknown field of 3rd party backup / restore which I DON'T WANT TO DO because I have used MSoft's solution for YEARS and KNOW it works... OK... USED to work !!!

Yes, I agree Microsoft's solution is the best and I too did not want to give up.

I did find the problem though - Avast Antivirus has something called NG Tools or Virtual Machine was preventing Windows from getting the exclusive lock on the drive.

A simple removal of the NG tools got back system image to working.

If you have an antivirus program that has something similar to virtual machine - you could try removing it first.

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20 people were helped by this reply


Just Uninstall Avast or maybe other virus protection. Disabling did not help for me. I Uninstall and everything is working. 

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I'm running the free version of Avast. I've looked high and low for NG Tools and can't find it. Next step is to uninstall Avast and see what happens ( you'd think a clean boot would turn everything off ??? ). Thanks.

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Yup, that's my next step - uninstall Avast. Thanks.

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You'll find it in Programs and Features, right click on Avast and click on change.

Click Continue and disable virtual machine/NG tools in the tools column.

If you still can't find it, uninstall Avast. 

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How did you remove the NG tools?

Following steps above, I don't see virtual machine or NG tools under "Tools"

I don't have Firewall, Sandbox, Safezone or Data Shredder.....

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Views: 12,126 Last updated: May 19, 2018 Applies to: