Skip to main content

Change cbfltfs4 or cbfsfilter2017 to run in MiniFilter Mode

Steve Ku
  • Created:
  • Updated:

 

Problem: 

Occasionally ProfileUnity FlexApp Filter Driver will need to be run in minifilter mode

Resolution:

Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\cbfltfs4\Parameters - MiniFilterMode.

Capture.PNG


Change the Data to 1.

Restart the machine.

The above changes can be made using "registry" section of the GPO.

Note: For ProfileUnity 6.8.3 R2 and later (above) change is not valid anymore.

 

To run 6.8.3 R2 and later in  "MiniFilterMode":

  

Change 1:

If you run non-persistent VDI with no client on a base image (just a startup GPO)

By default the configuration file is located in netlogon
\\netlogonServer\ProfileUnity\FlexApp\ContainerService\x64\VirtFsService.exe.config

<setting name="MiniFilterMode" serializeAs="String">
<value>True</value>

(Modify value from "False" to "True" )
Refresh your desktops.
Change 2:
If your client is installed in the base image you need to follow the below
Login as a local administrator.
If  the client tools are installed on your base image, it is necessary to edit the same file on the base image. By default the configuration file is located in here
C:\Program Files\ProfileUnity\FlexApp\ContainerService\x64\VirtFsService.exe.config
Same change applies

<setting name="MiniFilterMode" serializeAs="String">
<value>True</value>

(Modify value from "False" to "True")

 

Also, run the following commands as an administrator

sc stop cbfsfilter2017

sc delete cbfsfilter2017

 

Reboot the image, take a snapshot, and update your pool(s).

 

Easy to identify before making changes output of "fltmc" should be :

mceclip0.png

Wen running 6.8.3 R2 in Minifilter mode the output of "fltmc" should be:

mceclip1.png

Recommended:

Add additional User Defined script to run (@ Logon Before ProfileUnity)

Command: %systemroot%\system32\cmd.exe /C mklink /D c:\users\%username% c:\users\profiledisk\%username%

If problem remains:

Edit : LwL.ProfileUnity.Client.Startup.Update.exe.config (client-tools) directory on the netlogon share

 <setting name="InstallFlexApp_LwlContainerService" serializeAs="String">
        <value>Start</value>

replace "Start" with "DontDeploy" 

uninstall (lwl.profileunity.client.startup.exe /uninstall) reboot and install (lwl.profileunity.client.startup.exe) 

 

Product: ProfileUnity

Product Version: 6.8.0/6.8.2/6.8.3/ and newer

 

Related articles