diff --git a/test/jdk/java/nio/file/Files/probeContentType/Basic.java b/test/jdk/java/nio/file/Files/probeContentType/Basic.java
index aee1b19a01d..a82269c6c56 100644
--- a/test/jdk/java/nio/file/Files/probeContentType/Basic.java
+++ b/test/jdk/java/nio/file/Files/probeContentType/Basic.java
@@ -39,7 +39,6 @@
 import java.util.stream.Stream;
 
 import jdk.internal.util.OperatingSystem;
-import jdk.internal.util.OSVersion;
 import jdk.internal.util.StaticProperty;
 
 /**
@@ -189,18 +188,8 @@ public static void main(String[] args) throws IOException {
         exTypes.add(new ExType("xlsx", List.of("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")));
         exTypes.add(new ExType("wasm", List.of("application/wasm")));
 
-        // extensions with content type that differs on Windows 11+ and
-        // Windows Server 2025
-        if (OperatingSystem.isWindows() &&
-            (StaticProperty.osName().matches("^.*[11|2025]$") ||
-                new OSVersion(10, 0).compareTo(OSVersion.current()) > 0)) {
-            System.out.println("Windows 11+ detected: using different types");
-            exTypes.add(new ExType("bz2", List.of("application/bz2", "application/x-bzip2", "application/x-bzip", "application/x-compressed")));
-            exTypes.add(new ExType("csv", List.of("text/csv", "application/vnd.ms-excel")));
-            exTypes.add(new ExType("rar", List.of("application/rar", "application/vnd.rar", "application/x-rar", "application/x-rar-compressed", "application/x-compressed")));
-            exTypes.add(new ExType("rtf", List.of("application/rtf", "text/rtf", "application/msword")));
-            exTypes.add(new ExType("7z", List.of("application/x-7z-compressed", "application/x-compressed")));
-        } else {
+        // extensions with consistent content type on Unix (but not on Windows)
+        if (!OperatingSystem.isWindows()) {
             exTypes.add(new ExType("bz2", List.of("application/bz2", "application/x-bzip2", "application/x-bzip")));
             exTypes.add(new ExType("csv", List.of("text/csv")));
             exTypes.add(new ExType("rar", List.of("application/rar", "application/vnd.rar", "application/x-rar", "application/x-rar-compressed")));