1. 刪除登錄檔

   1. ctrl+r 輸入 regegit 調出登錄檔
   2. 刪除 HKEY_CLASSES_ROOT 下的 .uproject

2. 指令碼(.cmd字尾格式)

   :: UnrealProjectMenuRegistration.cmd
   ::
   :: This batch file will try to find where the Unreal Engine is installed, then update your registry
   :: to register the Unreal Project File type (and its right click menu for things such as generating
   :: Visual Studio project files, and launching)
   ::
   :: Run as an Administrator, as it's required for writing to HKLM.
   ::
   :: Author: David Moore <
    
   [email protected]>
   
   @ECHO OFF
   
   echo.
   echo Locating where Unreal Engine is installed by checking the Windows registry...
   # 註釋掉下面三行
   # FOR /F "tokens=2*" %%A IN ('reg query "HKLM\SOFTWARE\EpicGames\Unreal Engine" /v "INSTALLDIR"') DO (
   #    SET "UnrealEngineDir=%%B"
   #)
   # 設定Epci Games Launcher的安裝路徑
   SET "UnrealEngineDir=D:\Program Files (x86)\Epic Games\"
   
   IF "%UnrealEngineDir%"=="" GOTO CannotFindUnrealEngine
   
   echo.
   echo Using Unreal Engine directory: %UnrealEngineDir%
   
   set LauncherPath=%UnrealEngineDir%Launcher\Engine\Binaries\Win64\UnrealVersionSelector.exe
   
   echo.
   echo Adding registry keys for the Unreal Project right click menu...
   
   :: HKLM\SOFTWARE\Classes\.uproject
   reg ADD "HKLM\Software\Classes\.uproject" /ve /d Unreal.ProjectFile /f
   IF ERRORLEVEL 1 (
       echo Couldn't write to registry. Did you forget to run this batch file as an administrator?
       goto TheEnd
   )
   
   :: HKLM\SOFTWARE\Classes\Unreal.ProjectFile
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile" /ve /d "Unreal Engine Project File" /f
   
   :: HKLM\SOFTWARE\Classes\Unreal.ProjectFile\DefaultIcon
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\DefaultIcon" /ve /d "\"%LauncherPath%\"" /f
   
   :: HKLM\SOFTWARE\Classes\Unreal.ProjectFile\shell\open
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\shell\open" /ve /d "Open" /f
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\shell\open\command" /ve /d "\"%LauncherPath%\" /editor \"%%1\"" /f
   
   :: HKLM\SOFTWARE\Classes\Unreal.ProjectFile\shell\run
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\shell\run" /ve /d "Launch game" /f
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\shell\run" /v Icon /t REG_SZ /d "\"%LauncherPath%\"" /f
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\shell\run\command" /ve /d "\"%LauncherPath%\" /game \"%%1\"" /f
   
   :: HKLM\SOFTWARE\Classes\Unreal.ProjectFile\shell\rungenproj
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\shell\rungenproj" /ve /d "Generate Visual Studio project files" /f
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\shell\rungenproj" /v Icon /t REG_SZ /d "\"%LauncherPath%\"" /f
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\shell\rungenproj\command" /ve /d "\"%LauncherPath%\" /projectfiles \"%%1\"" /f
   
   :: HKLM\SOFTWARE\Classes\Unreal.ProjectFile\shell\switchversion
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\shell\switchversion" /ve /d "Switch Unreal Engine version..." /f
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\shell\switchversion" /v Icon /t REG_SZ /d "\"%LauncherPath%\"" /f
   reg ADD "HKLM\Software\Classes\Unreal.ProjectFile\shell\switchversion\command" /ve /d "\"%LauncherPath%\" /switchversion \"%%1\"" /f
   
   :Done
   echo.
   echo Done.
   echo.
   goto TheEnd
   
   :CannotFindUnrealEngine
   echo.
   echo DOH! Can't find the Unreal Engine.
   echo.
   goto TheEnd
   
   :TheEnd
   pause
    
   

3. 右鍵上面的指令碼選擇管理員執行

Generate visual studio project files(cmd模式)

C:/Program Files/Epic Games/UE_4.19/Engine/Binaries/DotNET/UnrealBuildTool.exe  -projectfiles -project="C:/Users/Administrator/Desktop/OVSDKSampleUE4/OVSDKSampleUE4.uproject" -game -rocket -progress