--- a/wp/wp-admin/includes/class-pclzip.php	Fri Sep 05 18:40:08 2025 +0200
+++ b/wp/wp-admin/includes/class-pclzip.php	Fri Sep 05 18:52:52 2025 +0200
@@ -5714,7 +5714,7 @@
   // --------------------------------------------------------------------------------
   function PclZipUtilTranslateWinPath($p_path, $p_remove_disk_letter=true)
   {
-    if (stristr(php_uname(), 'windows')) {
+    if (PHP_OS_FAMILY == 'Windows') {
       // ----- Look for potential disk letter
       if (($p_remove_disk_letter) && (($v_position = strpos($p_path, ':')) != false)) {
           $p_path = substr($p_path, $v_position+1);