diff --git a/cassandra/src/test/java/org/apache/calcite/test/CassandraExtension.java b/cassandra/src/test/java/org/apache/calcite/test/CassandraExtension.java
index 29a30ee4d91d..6bcb9de959f2 100644
--- a/cassandra/src/test/java/org/apache/calcite/test/CassandraExtension.java
+++ b/cassandra/src/test/java/org/apache/calcite/test/CassandraExtension.java
@@ -17,20 +17,19 @@
 package org.apache.calcite.test;
 
 import org.apache.calcite.config.CalciteSystemProperty;
-import org.apache.calcite.util.Bug;
 import org.apache.calcite.util.Sources;
 import org.apache.calcite.util.TestUtil;
 
 import org.apache.cassandra.concurrent.Stage;
 import org.apache.cassandra.config.DatabaseDescriptor;
-import org.apache.cassandra.db.WindowsFailedSnapshotTracker;
 import org.apache.cassandra.service.CassandraDaemon;
 import org.apache.cassandra.service.StorageService;
-import org.apache.cassandra.utils.FBUtilities;
 
 import com.datastax.oss.driver.api.core.CqlSession;
 import com.google.common.collect.ImmutableMap;
 
+import org.apache.commons.lang3.SystemUtils;
+
 import org.cassandraunit.utils.EmbeddedCassandraServerHelper;
 import org.junit.jupiter.api.extension.ConditionEvaluationResult;
 import org.junit.jupiter.api.extension.ExecutionCondition;
@@ -43,8 +42,6 @@
 import java.io.IOException;
 import java.io.UncheckedIOException;
 import java.lang.reflect.Field;
-import java.nio.file.Files;
-import java.nio.file.Paths;
 import java.time.Duration;
 import java.util.Locale;
 import java.util.Objects;
@@ -121,34 +118,39 @@ private static CassandraResource getOrCreate(ExtensionContext context) {
    * {@link com.google.common.collect.ImmutableSet#builderWithExpectedSize(int)}
    * and therefore Guava 23 or higher.
    *
+   * <p>Cassandra dropped support for Windows in 4.1.x
+   * @see <a href="https://issues.apache.org/jira/browse/CASSANDRA-16956">CASSANDRA-16956</a>
+   *
    * @return {@code true} if test is compatible with current environment,
    *         {@code false} otherwise
    */
   @Override public ConditionEvaluationResult evaluateExecutionCondition(
       final ExtensionContext context) {
     boolean enabled = CalciteSystemProperty.TEST_CASSANDRA.value();
-    Bug.upgrade("remove JDK version check once cassandra-unit supports JDK11+");
+    // remove JDK version check once cassandra-unit supports JDK11+
     boolean compatibleJdk = TestUtil.getJavaMajorVersion() < 11;
     boolean compatibleGuava = TestUtil.getGuavaMajorVersion() >= 23;
-    // See https://issues.apache.org/jira/browse/CASSANDRA-14883
-    Bug.upgrade("remove JVM check once Cassandra supports Eclipse OpenJ9 JVM");
+    // remove JVM check once Cassandra supports Eclipse OpenJ9 JVM
     boolean compatibleJVM = !"Eclipse OpenJ9".equals(TestUtil.getJavaVirtualMachineVendor());
-    if (enabled && compatibleJdk && compatibleGuava && compatibleJVM) {
+    boolean compatibleOS = !SystemUtils.IS_OS_WINDOWS;
+    if (enabled && compatibleJdk && compatibleGuava && compatibleJVM && compatibleOS) {
       return ConditionEvaluationResult.enabled("Cassandra tests enabled");
-    } else {
-      final StringBuilder sb = new StringBuilder("Cassandra tests disabled:");
+    }
 
-      if (!compatibleJdk) {
-        sb.append("\nJDK11+ is not supported");
-      }
-      if (!compatibleGuava) {
-        sb.append("\nGuava versions < 23 are not supported");
-      }
-      if (!compatibleJVM) {
-        sb.append("\nEclipse OpenJ9 JVM is not supported");
-      }
-      return ConditionEvaluationResult.disabled(sb.toString());
+    final StringBuilder sb = new StringBuilder("Cassandra tests disabled:");
+    if (!compatibleJdk) {
+      sb.append("\n - JDK11+ is not supported");
     }
+    if (!compatibleGuava) {
+      sb.append("\n - Guava versions < 23 are not supported");
+    }
+    if (!compatibleJVM) {
+      sb.append("\n - Eclipse OpenJ9 JVM is not supported");
+    }
+    if (!compatibleOS) {
+      sb.append("\n - Cassandra doesn't support Windows");
+    }
+    return ConditionEvaluationResult.disabled(sb.toString());
   }
 
   /** Cassandra resource. */
@@ -187,14 +189,6 @@ private CassandraResource() {
         Thread.currentThread().interrupt();
       }
       Stage.shutdownNow();
-
-      if (FBUtilities.isWindows) {
-        // for some reason .toDelete stale folder is not deleted on cassandra shutdown
-        // doing it manually here
-        WindowsFailedSnapshotTracker.resetForTests();
-        // manually delete stale file(s)
-        Files.deleteIfExists(Paths.get(WindowsFailedSnapshotTracker.TODELETEFILE));
-      }
     }
 
     private static void startCassandra() {
@@ -235,5 +229,4 @@ private static CassandraDaemon extractDaemon() {
       }
     }
   }
-
 }