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What is the significance of The luafv service failed to start due to the following error: This driver has been blocked from loading

Question

Wednesday, April 4, 2018 4:34 PM

1) Please explain the significance of:

The luafv service failed to start due to the following error: 
This driver has been blocked from loading

2) What does the luafv service do?

3) What is the impact of having the driver blocked?

4) What determines whether the driver is blocked?

5) How do you unblock the driver?

These links I had seen but did not understand them:

https://blogs.msdn.microsoft.com/alexcarp/2009/06/25/the-deal-with-luafv-sys/

https://social.technet.microsoft.com/Forums/en-US/c5495f5a-d70e-4ce9-84ed-3bcbfaf65aa0/uac-file-virtualization-service-failed-to-start?forum=winserver8gen

6) How do you troubleshoot this problem in a step by step fashion?

All replies (2)

Wednesday, April 4, 2018 7:11 PM | 1 vote

Hello,

This can be due to group policies setting that have disabled LUA

What is value on this registry setting

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System]
"ConsentPromptBehaviorAdmin"=dword:00000000                                                                                                          
"EnableLUA"=dword:00000000 
Value :1  - Enable UAC
Value :0 – Disable UAC

Thanks, Darrell Gorter [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.


Tuesday, June 9, 2020 7:32 PM

I have the same error running Windows 2016 std on an OpenStack Nova. I believe it is interfering with FlexNet's ability to store Product Key information in system store and thus preventing Tableau Server from running.  The following event that happens after each reboot:

Log Name:      System
Source:        Service Control Manager
Event ID:      7000
Level:         Error
Description: The luafv service failed to start due to the following error: This driver has been blocked from loading

The registry is set as:

Is it safe to edit these settings? What change will fix my problem?

Many Thanks in advance!