diff --git a/plugins/housekeeper/DiskUsageDashlet.inc.php b/plugins/housekeeper/DiskUsageDashlet.inc.php
index 05039c3..5f1e978 100755
--- a/plugins/housekeeper/DiskUsageDashlet.inc.php
+++ b/plugins/housekeeper/DiskUsageDashlet.inc.php
@@ -48,6 +48,8 @@ class DiskUsageDashlet extends KTBaseDashlet
 
     function is_active($oUser)
     {
+        if (OS_WINDOWS && ((float) php_uname('r') >= 6)) return false;
+
         $usage = KTUtil::getSystemSetting('DiskUsage');
         if (empty($usage)) return false;
         $usage = unserialize($usage);