diff --git a/build.cmd b/build.cmd
index 70f62bc4fb7d..c0c5cb7a4363 100644
--- a/build.cmd
+++ b/build.cmd
@@ -540,6 +540,31 @@ set PATH=%PATH%;%WinDir%\Microsoft.Net\Framework64\V4.0.30319;%WinDir%\Microsoft
 if %__BuildNativeCoreLib% EQU 1 (
     echo %__MsgPrefix%Generating native image of System.Private.CoreLib for %__BuildOS%.%__BuildArch%.%__BuildType%
 
+    REM Need VS native tools environment for the **target** arch when running instrumented binaries
+    if %__PgoInstrument% EQU 1 (
+        set __VCExecArch=%__BuildArch%
+        if /i [%__BuildArch%] == [x64] set __VCExecArch=amd64
+        echo %__MsgPrefix%Using environment: "%__VCToolsRoot%\vcvarsall.bat" !__VCExecArch!
+        call                                 "%__VCToolsRoot%\vcvarsall.bat" !__VCExecArch!
+        @if defined _echo @echo on
+        if NOT !errorlevel! == 0 (
+            echo %__MsgPrefix%Error: Failed to load native tools environment for !__VCExecArch!
+            goto CrossgenFailure
+        )
+
+        REM HACK: Workaround for [dotnet/coreclr#13970](https://github.com/dotnet/coreclr/issues/13970)
+        set __PgoRtPath=
+        for /f "tokens=*" %%f in ('where pgort*.dll') do (
+          if not defined __PgoRtPath set "__PgoRtPath=%%~f"
+        )
+        echo %__MsgPrefix%Copying "!__PgoRtPath!" into "%__BinDir%"
+        copy /y "!__PgoRtPath!" "%__BinDir%" || (
+          echo %__MsgPrefix%Error: copy failed
+          goto CrossgenFailure
+        )
+        REM End HACK
+    )
+
     set NEXTCMD="%__CrossgenExe%" %__IbcTuning% /Platform_Assemblies_Paths "%__BinDir%"\IL /out "%__BinDir%\System.Private.CoreLib.dll" "%__BinDir%\IL\System.Private.CoreLib.dll"
     echo %__MsgPrefix%!NEXTCMD!
     !NEXTCMD! > "%__CrossGenCoreLibLog%" 2>&1
diff --git a/pgosupport.cmake b/pgosupport.cmake
index 947286628c59..96ff80af8d3a 100644
--- a/pgosupport.cmake
+++ b/pgosupport.cmake
@@ -1,11 +1,3 @@
-function(clr_pgo_unknown_arch)
-    if (WIN32)
-        message(FATAL_ERROR "Only AMD64, ARM and I386 are supported for PGO")
-    else()
-        message(FATAL_ERROR "PGO not currently supported on the current platform")
-    endif()
-endfunction(clr_pgo_unknown_arch)
-
 # Adds Profile Guided Optimization (PGO) flags to the current target
 function(add_pgo TargetName)
     if(WIN32)
@@ -57,33 +49,3 @@ function(add_pgo TargetName)
         endif(EXISTS ${ProfilePath})
     endif(CLR_CMAKE_PGO_INSTRUMENT)
 endfunction(add_pgo)
-
-if(WIN32)
-  if(CLR_CMAKE_PGO_INSTRUMENT)
-    # Instrumented PGO binaries on Windows introduce an additional runtime dependency, pgort<ver>.dll.
-    # Make sure we copy it next to the installed product to make it easier to redistribute the package.
-
-    string(SUBSTRING ${CMAKE_VS_PLATFORM_TOOLSET} 1 -1 VS_PLATFORM_VERSION_NUMBER)
-    set(PGORT_FILENAME "pgort${VS_PLATFORM_VERSION_NUMBER}.dll")
-
-    get_filename_component(PATH_CXX_ROOTDIR ${CMAKE_CXX_COMPILER} DIRECTORY)
-
-    if(CLR_CMAKE_PLATFORM_ARCH_I386)
-      set(PATH_VS_PGORT_DLL "${PATH_CXX_ROOTDIR}/${PGORT_FILENAME}")
-    elseif(CLR_CMAKE_PLATFORM_ARCH_AMD64)
-      set(PATH_VS_PGORT_DLL "${PATH_CXX_ROOTDIR}/../amd64/${PGORT_FILENAME}")
-    elseif(CLR_CMAKE_PLATFORM_ARCH_ARM)
-      set(PATH_VS_PGORT_DLL "${PATH_CXX_ROOTDIR}/../arm/${PGORT_FILENAME}")
-    else()
-      clr_pgo_unknown_arch()
-    endif()
-
-    if (EXISTS ${PATH_VS_PGORT_DLL})
-      message(STATUS "Found PGO runtime: ${PATH_VS_PGORT_DLL}")
-      install(PROGRAMS ${PATH_VS_PGORT_DLL} DESTINATION .)
-    else()
-      message(FATAL_ERROR "file not found: ${PATH_VS_PGORT_DLL}")
-    endif()
-
-  endif(CLR_CMAKE_PGO_INSTRUMENT)
-endif(WIN32)