diff --git a/assets/files.wxs b/assets/files.wxs
index cd4b607982f..f4a7ec75ba2 100644
--- a/assets/files.wxs
+++ b/assets/files.wxs
@@ -48,6 +48,12 @@
       <Component Id="cmp2CACC20993A24B6183A07B0723E20662">
         <File Id="fil2CACC20993A24B6183A07B0723E20662" KeyPath="yes" Source="$(env.ProductSourcePath)\System.Runtime.Intrinsics.dll" />
       </Component>
+      <Component Id="cmpD442235C7FAB4FC08279217AAD418D8F">
+        <File Id="filD442235C7FAB4FC08279217AAD418D8F" KeyPath="yes" Source="$(env.ProductSourcePath)\System.Runtime.WindowsRuntime.UI.Xaml.dll" />
+      </Component>
+      <Component Id="cmpEC09C60D0B3F49E78568FCF93718A249">
+        <File Id="filEC09C60D0B3F49E78568FCF93718A249" KeyPath="yes" Source="$(env.ProductSourcePath)\System.Runtime.WindowsRuntime.dll" />
+      </Component>
       <Component Id="cmp4477FC97930D452DA018C8F6A3D7D168">
         <File Id="fil4477FC97930D452DA018C8F6A3D7D168" KeyPath="yes" Source="$(env.ProductSourcePath)\System.Security.Cryptography.ProtectedData.dll" />
       </Component>
@@ -606,6 +612,9 @@
       <Component Id="cmpC57663058794D67CD71E9334A7DBFB11">
         <File Id="fil498537DD5C38285E4B3A1C50B2B0E23A" KeyPath="yes" Source="$(env.ProductSourcePath)\System.Windows.dll" />
       </Component>
+      <Component Id="cmpCB2FCEE967F59AE69BAC96EF19772EB2">
+        <File Id="fil2B0866B4B64ECAF928C0E895FC70B011" KeyPath="yes" Source="$(env.ProductSourcePath)\System.Runtime.InteropServices.WindowsRuntime.dll" />
+      </Component>
       <Component Id="cmp5084DA048CE4466B2B33CC19E8E160C0">
         <File Id="fil22B3F0CDB4C28A54A92A1BB0E052A83E" KeyPath="yes" Source="$(env.ProductSourcePath)\System.Linq.Queryable.dll" />
       </Component>
@@ -1558,6 +1567,9 @@
         <Component Id="cmp5C521E049A6A4AFBB757B0A6EAA719A1">
           <File Id="fil5BE8E3168F104F9F956C7CB8FCF31902" KeyPath="yes" Source="$(env.ProductSourcePath)\ref\Microsoft.VisualBasic.dll" />
         </Component>
+        <Component Id="cmpCC43FBF6DDE54BF993571B297033AD70">
+          <File Id="filCCEB803AB6224EE798C3910BB179E18A" KeyPath="yes" Source="$(env.ProductSourcePath)\ref\System.Runtime.InteropServices.WindowsRuntime.dll" />
+        </Component>
         <Component Id="cmp6E47302FE24348BDBED003ACA133F7DB">
           <File Id="fil1B879010BBE0469B81D9F0D3F2CC443C" KeyPath="yes" Source="$(env.ProductSourcePath)\ref\System.Runtime.Serialization.dll" />
         </Component>
@@ -3100,8 +3112,8 @@
       <Component Id="cmp7BDE558CCB344A399134DE2C9E2C8D3D">
         <File Id="filF907AD3E73324DEA94AE90E9625AFA73" KeyPath="yes" Source="$(env.ProductSourcePath)\api-ms-win-core-console-l1-2-0.dll" />
       </Component>
-      <Component Id="cmpECA9F52E6C7B46DFBF72DA3E46BAA935" Guid="{d5d678ab-f67a-4fd1-aa15-577c02e5638e}">
-        <File Id="filBC8AE665C1454024AAEF7E677AD10239" KeyPath="yes" Source="$(env.ProductSourcePath)\mscordaccore_$(var.FileArchitecture)_$(var.FileArchitecture)_5.0.20.30506.dll" />
+      <Component Id="cmp616C61FD507945649F648DC488C9ADCB" Guid="{3ede300d-c2b2-4bdc-8e05-57bbc06140c6}">
+        <File Id="filB67C6FC5EF904288BB4DFCB5010033D7" KeyPath="yes" Source="$(env.ProductSourcePath)\mscordaccore_$(var.FileArchitecture)_$(var.FileArchitecture)_5.0.20.27801.dll" />
       </Component>
     </DirectoryRef>
   </Fragment>
@@ -3122,6 +3134,8 @@
       <ComponentRef Id="cmpC9B33CF1478E4A73A8C48853FEDBF014" />
       <ComponentRef Id="cmp9B8B3C498C954C47B35F15527E72C6D2" />
       <ComponentRef Id="cmp2CACC20993A24B6183A07B0723E20662" />
+      <ComponentRef Id="cmpD442235C7FAB4FC08279217AAD418D8F" />
+      <ComponentRef Id="cmpEC09C60D0B3F49E78568FCF93718A249" />
       <ComponentRef Id="cmp4477FC97930D452DA018C8F6A3D7D168" />
       <ComponentRef Id="cmp30C10EC477714A76B2A8D0A957D1D6F3" />
       <ComponentRef Id="cmp31176C5A3BDB4A9F95171A4780D7D4D2" />
@@ -3308,6 +3322,7 @@
       <ComponentRef Id="cmp5DE1EE232F232719DFB8EC9DF88FDE03" />
       <ComponentRef Id="cmp2C835739E602911F79B064D2F0CB241A" />
       <ComponentRef Id="cmpC57663058794D67CD71E9334A7DBFB11" />
+      <ComponentRef Id="cmpCB2FCEE967F59AE69BAC96EF19772EB2" />
       <ComponentRef Id="cmp5084DA048CE4466B2B33CC19E8E160C0" />
       <ComponentRef Id="cmpA1069497315F9B59DAC010E401DDE5F8" />
       <ComponentRef Id="cmp79B0C6718C0A7BFE6B6810F6DAD41E81" />
@@ -3625,6 +3640,7 @@
       <ComponentRef Id="cmp8490EDAA5CBE43C4908761C12B7082F3" />
       <ComponentRef Id="cmp282D15F724FF462BA8DD96C984CF7A92" />
       <ComponentRef Id="cmp5C521E049A6A4AFBB757B0A6EAA719A1" />
+      <ComponentRef Id="cmpCC43FBF6DDE54BF993571B297033AD70" />
       <ComponentRef Id="cmp6E47302FE24348BDBED003ACA133F7DB" />
       <ComponentRef Id="cmp63589D2DF7554D2188C43D463450582D" />
       <ComponentRef Id="cmp7C95FAD00FBA4F0398673010B419DA0F" />
diff --git a/global.json b/global.json
index 5d38d24dffd..12a373c1e90 100644
--- a/global.json
+++ b/global.json
@@ -1,5 +1,5 @@
 {
   "sdk": {
-    "version": "5.0.100-preview.6.20319.2"
+    "version": "5.0.100-preview.5.20279.10"
   }
 }
diff --git a/src/Microsoft.PowerShell.Commands.Management/Microsoft.PowerShell.Commands.Management.csproj b/src/Microsoft.PowerShell.Commands.Management/Microsoft.PowerShell.Commands.Management.csproj
index d08d87544ca..979225ef3ec 100644
--- a/src/Microsoft.PowerShell.Commands.Management/Microsoft.PowerShell.Commands.Management.csproj
+++ b/src/Microsoft.PowerShell.Commands.Management/Microsoft.PowerShell.Commands.Management.csproj
@@ -47,7 +47,7 @@
 
   <ItemGroup>
     <!-- the following package(s) are from https://github.com/dotnet/corefx -->
-    <PackageReference Include="System.ServiceProcess.ServiceController" Version="5.0.0-preview.6.20305.6" />
+    <PackageReference Include="System.ServiceProcess.ServiceController" Version="5.0.0-preview.5.20278.1" />
   </ItemGroup>
 
 </Project>
diff --git a/src/Microsoft.PowerShell.Commands.Utility/Microsoft.PowerShell.Commands.Utility.csproj b/src/Microsoft.PowerShell.Commands.Utility/Microsoft.PowerShell.Commands.Utility.csproj
index 79535c296b4..d5477d109b4 100644
--- a/src/Microsoft.PowerShell.Commands.Utility/Microsoft.PowerShell.Commands.Utility.csproj
+++ b/src/Microsoft.PowerShell.Commands.Utility/Microsoft.PowerShell.Commands.Utility.csproj
@@ -32,8 +32,8 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.6.0" />
-    <PackageReference Include="System.Threading.AccessControl" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.Drawing.Common" Version="5.0.0-preview.6.20305.6" />
+    <PackageReference Include="System.Threading.AccessControl" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.Drawing.Common" Version="5.0.0-preview.5.20278.1" />
     <PackageReference Include="NJsonSchema" Version="10.1.21" />
   </ItemGroup>
 
diff --git a/src/Microsoft.PowerShell.CoreCLR.Eventing/Microsoft.PowerShell.CoreCLR.Eventing.csproj b/src/Microsoft.PowerShell.CoreCLR.Eventing/Microsoft.PowerShell.CoreCLR.Eventing.csproj
index 4f3eb028895..3230ef91d5f 100644
--- a/src/Microsoft.PowerShell.CoreCLR.Eventing/Microsoft.PowerShell.CoreCLR.Eventing.csproj
+++ b/src/Microsoft.PowerShell.CoreCLR.Eventing/Microsoft.PowerShell.CoreCLR.Eventing.csproj
@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <!-- the following package(s) are from https://github.com/dotnet/corefx -->
-    <PackageReference Include="System.Diagnostics.EventLog" Version="5.0.0-preview.6.20305.6" />
+    <PackageReference Include="System.Diagnostics.EventLog" Version="5.0.0-preview.5.20278.1" />
   </ItemGroup>
 
 </Project>
diff --git a/src/Microsoft.PowerShell.SDK/Microsoft.PowerShell.SDK.csproj b/src/Microsoft.PowerShell.SDK/Microsoft.PowerShell.SDK.csproj
index a1e1a5034cb..000efa63316 100644
--- a/src/Microsoft.PowerShell.SDK/Microsoft.PowerShell.SDK.csproj
+++ b/src/Microsoft.PowerShell.SDK/Microsoft.PowerShell.SDK.csproj
@@ -18,9 +18,9 @@
     <!-- the following package(s) are from https://github.com/dotnet/fxdac -->
     <PackageReference Include="System.Data.SqlClient" Version="4.8.1" />
     <!-- the following package(s) are from https://github.com/dotnet/corefx -->
-    <PackageReference Include="System.IO.Packaging" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.Net.Http.WinHttpHandler" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.Text.Encodings.Web" Version="5.0.0-preview.6.20305.6" />
+    <PackageReference Include="System.IO.Packaging" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.Net.Http.WinHttpHandler" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.Text.Encodings.Web" Version="5.0.0-preview.5.20278.1" />
     <!-- the following package(s) are from https://github.com/dotnet/wcf -->
     <PackageReference Include="System.ServiceModel.Duplex" Version="4.7.0" />
     <PackageReference Include="System.ServiceModel.Http" Version="4.7.0" />
@@ -30,7 +30,7 @@
     <PackageReference Include="System.Private.ServiceModel" Version="4.7.0" />
     <!-- the source could not be found for the following package(s) -->
     <PackageReference Include="Microsoft.NETCore.Windows.ApiSets" Version="1.0.1" />
-    <PackageReference Include="Microsoft.Windows.Compatibility" Version="5.0.0-preview.6.20305.6" />
+    <PackageReference Include="Microsoft.Windows.Compatibility" Version="5.0.0-preview.5.20278.1" />
   </ItemGroup>
 
 </Project>
diff --git a/src/Microsoft.WSMan.Management/Microsoft.WSMan.Management.csproj b/src/Microsoft.WSMan.Management/Microsoft.WSMan.Management.csproj
index e894ba3b7bf..835e26b2cf0 100644
--- a/src/Microsoft.WSMan.Management/Microsoft.WSMan.Management.csproj
+++ b/src/Microsoft.WSMan.Management/Microsoft.WSMan.Management.csproj
@@ -9,7 +9,7 @@
     <ProjectReference Include="..\System.Management.Automation\System.Management.Automation.csproj" />
     <ProjectReference Include="..\Microsoft.WSMan.Runtime\Microsoft.WSMan.Runtime.csproj" />
     <!-- the following package(s) are from https://github.com/dotnet/corefx -->
-    <PackageReference Include="System.ServiceProcess.ServiceController" Version="5.0.0-preview.6.20305.6" />
+    <PackageReference Include="System.ServiceProcess.ServiceController" Version="5.0.0-preview.5.20278.1" />
   </ItemGroup>
 
   <PropertyGroup>
diff --git a/src/System.Management.Automation/System.Management.Automation.csproj b/src/System.Management.Automation/System.Management.Automation.csproj
index 4818c481ef7..9a036a28249 100644
--- a/src/System.Management.Automation/System.Management.Automation.csproj
+++ b/src/System.Management.Automation/System.Management.Automation.csproj
@@ -16,16 +16,16 @@
     <!-- the Application Insights package -->
     <PackageReference Include="Microsoft.ApplicationInsights" Version="2.14.0" />
     <!-- the following package(s) are from https://github.com/dotnet/corefx -->
-    <PackageReference Include="Microsoft.Win32.Registry.AccessControl" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.Configuration.ConfigurationManager" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.DirectoryServices" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.IO.FileSystem.AccessControl" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.Management" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.Security.AccessControl" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.Security.Permissions" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="5.0.0-preview.6.20305.6" />
+    <PackageReference Include="Microsoft.Win32.Registry.AccessControl" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.Configuration.ConfigurationManager" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.DirectoryServices" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.IO.FileSystem.AccessControl" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.Management" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.Security.AccessControl" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.Security.Permissions" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="5.0.0-preview.5.20278.1" />
     <!-- the following package(s) are from the powershell org -->
     <PackageReference Include="Microsoft.Management.Infrastructure" Version="2.0.0" />
     <PackageReference Include="Microsoft.PowerShell.Native" Version="7.0.0" />
diff --git a/test/tools/TestService/TestService.csproj b/test/tools/TestService/TestService.csproj
index 3a40984ffb1..e16c9fe3fdd 100644
--- a/test/tools/TestService/TestService.csproj
+++ b/test/tools/TestService/TestService.csproj
@@ -12,7 +12,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Windows.Compatibility" Version="5.0.0-preview.6.20305.6" />
+    <PackageReference Include="Microsoft.Windows.Compatibility" Version="5.0.0-preview.5.20278.1" />
   </ItemGroup>
 
 </Project>
diff --git a/test/tools/WebListener/WebListener.csproj b/test/tools/WebListener/WebListener.csproj
index 75826929298..bf51e748867 100644
--- a/test/tools/WebListener/WebListener.csproj
+++ b/test/tools/WebListener/WebListener.csproj
@@ -7,8 +7,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="5.0.0-preview.6.20312.15" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="5.0.0-preview.6.20305.6" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="5.0.0-preview.5.20279.2" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="5.0.0-preview.5.20278.1" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/tools/packaging/projects/reference/Microsoft.PowerShell.Commands.Utility/Microsoft.PowerShell.Commands.Utility.csproj b/tools/packaging/projects/reference/Microsoft.PowerShell.Commands.Utility/Microsoft.PowerShell.Commands.Utility.csproj
index 111c8845a0b..ba7733e3df0 100644
--- a/tools/packaging/projects/reference/Microsoft.PowerShell.Commands.Utility/Microsoft.PowerShell.Commands.Utility.csproj
+++ b/tools/packaging/projects/reference/Microsoft.PowerShell.Commands.Utility/Microsoft.PowerShell.Commands.Utility.csproj
@@ -14,6 +14,6 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
-    <PackageReference Include="System.Security.AccessControl" Version="5.0.0-preview.6.20305.6" />
+    <PackageReference Include="System.Security.AccessControl" Version="5.0.0-preview.5.20278.1" />
   </ItemGroup>
 </Project>
diff --git a/tools/packaging/projects/reference/System.Management.Automation/System.Management.Automation.csproj b/tools/packaging/projects/reference/System.Management.Automation/System.Management.Automation.csproj
index 9f1d4609047..761095c071b 100644
--- a/tools/packaging/projects/reference/System.Management.Automation/System.Management.Automation.csproj
+++ b/tools/packaging/projects/reference/System.Management.Automation/System.Management.Automation.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Management.Infrastructure" Version="2.0.0" />
-    <PackageReference Include="System.Security.AccessControl" Version="5.0.0-preview.6.20305.6" />
-    <PackageReference Include="System.Security.Principal.Windows" Version="5.0.0-preview.6.20305.6" />
+    <PackageReference Include="System.Security.AccessControl" Version="5.0.0-preview.5.20278.1" />
+    <PackageReference Include="System.Security.Principal.Windows" Version="5.0.0-preview.5.20278.1" />
   </ItemGroup>
 </Project>