Error During The Complilation In Windows x64

These are the errors:
UATHelper: Packaging (Windows (64-bit)): Running AutomationTool…
UATHelper: Packaging (Windows (64-bit)): Automation.ParseCommandLine: Parsing command line: -ScriptsForProject=“C:/Users/saisr/Desktop/Programmi/Unreal Engine 4/Apocalisse_Zombi/” BuildCookRun -nocompile -nocompileeditor -installed -nop4 -project=“C:/Users/saisr/Desktop/Programmi/Unreal Engine 4/Apocalisse_Zombi/Apocalisse_Zombi.upro
ject” -cook -stage -archive -archivedirectory=C:/Users/saisr/Desktop -package -clientconfig=Development -ue4exe=UE4Editor-Cmd.exe -pak -prereqs -nodebuginfo -targetplatform=Win64 -build -utf8output
UATHelper: Packaging (Windows (64-bit)): BuildCookRun.SetupParams: Setting up ProjectParams for C:\Users\saisr\Desktop\Programmi\Unreal Engine 4\Apocalisse_Zombi
UATHelper: Packaging (Windows (64-bit)): Project.Build: ********** BUILD COMMAND STARTED **********
UATHelper: Packaging (Windows (64-bit)): CommandUtils.Run: Run: D:\UE_4.16\Engine\Binaries\DotNET\UnrealBuildTool.exe Apocalisse_Zombi Win64 Development -Project="C:\Users\saisr\Desktop\Programmi\Unreal Engine 4\Apocalisse_Zombi" "C:\Users\saisr\Desktop\Programmi\Unreal Engine 4\Apocalisse_Zombi" -NoUBTMak
efiles -remoteini=“C:\Users\saisr\Desktop\Programmi\Unreal Engine 4\Apocalisse_Zombi” -noxge -generatemanifest -NoHotReload
UATHelper: Packaging (Windows (64-bit)): CommandUtils.Run: Run: Took 1.086767s to run UnrealBuildTool.exe, ExitCode=0
UATHelper: Packaging (Windows (64-bit)): CommandUtils.Run: Run: D:\UE_4.16\Engine\Binaries\DotNET\UnrealBuildTool.exe Apocalisse_Zombi Win64 Development -Project="C:\Users\saisr\Desktop\Programmi\Unreal Engine 4\Apocalisse_Zombi" "C:\Users\saisr\Desktop\Programmi\Unreal Engine 4\Apocalisse_Zombi" -NoUBTMak
efiles -remoteini=“C:\Users\saisr\Desktop\Programmi\Unreal Engine 4\Apocalisse_Zombi” -noxge -NoHotReload -ignorejunk
UATHelper: Packaging (Windows (64-bit)): UnrealBuildTool: ERROR: Windows SDK v8.1 must be installed in order to build this target.
UATHelper: Packaging (Windows (64-bit)): CommandUtils.Run: Run: Took 18.0688829s to run UnrealBuildTool.exe, ExitCode=5
UATHelper: Packaging (Windows (64-bit)): Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.CommandUtils+CommandFailedException: Command failed (Result:5): D:\UE_4.16\Engine\Binaries\DotNET\UnrealBuildTool.exe Apocalisse_Zombi Win64 Development -Project=“C:\Users\saisr\Desktop\Programmi\Unreal Engine 4\Apocalisse_Zombi\Apocalisse_Z
ombi.uproject” "C:\Users\saisr\Desktop\Programmi\Unreal Engine 4\Apocalisse_Zombi" -NoUBTMakefiles -remoteini=“C:\Users\saisr\Desktop\Programmi\Unreal Engine 4\Apocalisse_Zombi” -noxge -NoHotReload -ignorejunk. See logfile for details: ‘UnrealBuildTool-2017.06.08-18.43.34.txt’
UATHelper: Packaging (Windows (64-bit)): in AutomationTool.CommandUtils.RunAndLog(String App, String CommandLine, String Logfile, Int32 MaxSuccessCode, String Input, ERunOptions Options, Dictionary2 EnvVars, SpewFilterCallbackType SpewFilterCallback) UATHelper: Packaging (Windows (64-bit)): in AutomationTool.CommandUtils.RunAndLog(CommandEnvironment Env, String App, String CommandLine, String LogName, Int32 MaxSuccessCode, String Input, ERunOptions Options, Dictionary2 EnvVars, SpewFilterCallbackType SpewFilterCallback)
UATHelper: Packaging (Windows (64-bit)): in AutomationTool.CommandUtils.RunUBT(CommandEnvironment Env, String UBTExecutable, String CommandLine, String LogName, Dictionary2 EnvVars) UATHelper: Packaging (Windows (64-bit)): in AutomationTool.CommandUtils.RunUBT(CommandEnvironment Env, String UBTExecutable, FileReference Project, String Target, String Platform, String Config, String AdditionalArgs, String LogName, Dictionary2 EnvVars)
UATHelper: Packaging (Windows (64-bit)): in AutomationTool.UE4Build.BuildWithUBT(String TargetName, UnrealTargetPlatform TargetPlatform, String Config, FileReference UprojectPath, Boolean ForceMonolithic, Boolean ForceNonUnity, Boolean ForceDebugInfo, Boolean ForceFlushMac, Boolean DisableXGE, String InAddArgs, Boolean ForceUnity, Dictionary2 EnvVars) UATHelper: Packaging (Windows (64-bit)): in AutomationTool.UE4Build.Build(BuildAgenda Agenda, Nullable1 InDeleteBuildProducts, Boolean InUpdateVersionFiles, Boolean InForceNoXGE, Boolean InUseParallelExecutor, Boolean InForceNonUnity, Boolean InForceUnity, Boolean InShowProgress, Dictionary2 PlatformEnvVars, Nullable1 InChangelistNumberOverride, Dictio
nary2 InTargetToManifest) UATHelper: Packaging (Windows (64-bit)): in Project.Build(BuildCommand Command, ProjectParams Params, Int32 WorkingCL, ProjectBuildTargets TargetMask) UATHelper: Packaging (Windows (64-bit)): in BuildCookRun.DoBuildCookRun(ProjectParams Params) UATHelper: Packaging (Windows (64-bit)): in BuildCookRun.ExecuteBuild() UATHelper: Packaging (Windows (64-bit)): in AutomationTool.BuildCommand.Execute() UATHelper: Packaging (Windows (64-bit)): in AutomationTool.Automation.Execute(List1 CommandsToExecute, CaselessDictionary1 Commands) UATHelper: Packaging (Windows (64-bit)): in AutomationTool.Automation.Process(String] Arguments) UATHelper: Packaging (Windows (64-bit)): in AutomationTool.Program.MainProc(Object Param) UATHelper: Packaging (Windows (64-bit)): in AutomationTool.InternalUtils.RunSingleInstance(Func2 Main, Object Param)
UATHelper: Packaging (Windows (64-bit)): in AutomationTool.Program.Main()
UATHelper: Packaging (Windows (64-bit)): Program.Main: AutomationTool exiting with ExitCode=5 (5)
UATHelper: Packaging (Windows (64-bit)): BUILD FAILED
PackagingResults:Error: Error Unknown Error

It says you need Windows SDK 8.1

i install it but i have the same errors