Make sure to configure the following antivirus exclusions for FSLogix Profile Container virtual hard drives. Make sure to check the following information with your security team.
Exclude files:
%Programfiles%\FSLogix\Apps\frxdrv.sys
%Programfiles%\FSLogix\Apps\frxdrvvt.sys
%Programfiles%\FSLogix\Apps\frxccd.sys
%TEMP%*.VHD
%TEMP%*.VHDX
%Windir%\TEMP*.VHD
%Windir%\TEMP*.VHDX
\\storageaccount.file.core.windows.net\share**.VHD
\\storageaccount.file.core.windows.net\share**.VHDX
Exclude processes:
%Programfiles%\FSLogix\Apps\frxccd.exe
%Programfiles%\FSLogix\Apps\frxccds.exe
%Programfiles%\FSLogix\Apps\frxsvc.exe
When configuring optimizations, you can specify files and processes to exclude in the Windows Defender ATP category. For more information, please see Optimization.