diff --git a/.github/actions/spelling/expect.txt b/.github/actions/spelling/expect.txt
index 33993d1ad3..3f104dd6fa 100644
--- a/.github/actions/spelling/expect.txt
+++ b/.github/actions/spelling/expect.txt
@@ -419,6 +419,7 @@ seof
 servercert
 servercertificate
 setmetadatabymanifestid
+SETTINGCHANGE
 SETTINGMAPPING
 SHCONTF
 SHGDN
diff --git a/src/AppInstallerCommonCore/PathVariable.cpp b/src/AppInstallerCommonCore/PathVariable.cpp
index d1ab7295a3..c8a58bb804 100644
--- a/src/AppInstallerCommonCore/PathVariable.cpp
+++ b/src/AppInstallerCommonCore/PathVariable.cpp
@@ -121,6 +121,8 @@ namespace AppInstaller::Registry::Environment
 
         std::wstring pathName = std::wstring{ s_PathName };
         m_key.SetValue(pathName, ConvertToUTF16(value), REG_EXPAND_SZ);
+        SendNotifyMessageW(HWND_BROADCAST, WM_SETTINGCHANGE, 0, (LPARAM)TEXT("Environment"));
+
     }
 
     bool RefreshPathVariableForCurrentProcess()