When you try to create a system image using Windows Backup on your computer, the following error occurs and backup procedure stalls.
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. (0x8078011E)
Access is denied. (0x80070005)
Fix: Windows Backup Failed To Get An Exclusive Lock on EFI System Partition
The issue may occur if EFI system partition is locked or another application is using files on the system partition. Third party security software protects the system files and may be causing this issue. To resolve the problem, disable the third-party security software temporarily and perform a clean boot.
Putting your system in clean boot state helps find if any third party applications or startup items are causing the issue. See how to perform a clean boot in Windows using the MSConfig utility.
Note: If you had disabled some services earlier, note down the names in a piece of paper. Later on, after completing the clean boot routine and clicking “Enable all”, you may uncheck those specific services (which you had disabled already) manually.
Intermediate/Advanced users can also perform a clean boot using Autoruns tool from Windows SysInternals.
If that doesn’t help, uninstall your 3rd party antivirus solution, restart Windows and try running Windows Backup again.
Avast anti-virus’s NG component (Secure Virtual Machines) may be the culprit in most cases.
Avast NG is a hardware based virtualization solution to provide more isolated test space. It is capable of running each Windows process in standalone safe virtualized environment (VM) and fully integrated to your desktop. Each process is executed in its own instance of VM, which means totally isolated from your other applications. This feature now powers Avast DeepScreen to improve better scanning of unknown programs (better detections).
Uninstall Avast / Trend Micro / AVG
- Open Control Panel, Programs and Features
- Right click on the anti-virus software entry (for example, “Avast Free Antivirus / Avast Internet Security”, or “Trend Micro” or “AVG”) then click “Uninstall”
- Follow the on-screen instructions and restart Windows.
Intel Energy Server Service WILLAMETTE
Intel Energy Checker / Intel Energy Server Service WILLAMETTE is also known to cause the same problem. See if disabling/uninstalling this software fixes the problem.
If you’re using ESET antivirus, create exclusions for these two files:
Assuming that the drive-letter is
I:\ these are the exclusions you need to create in ESET settings:
For more information and screenshots, check out ESET article Windows Backup failing error message from the ESET Knowledgebase.
Hope this guide helped you resolve the error “Windows Backup Failed To Get An Exclusive Lock on EFI System Partition” (Error codes
0x80070005 ) when running Windows Backup on computers running Windows 7 through Windows 10.
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