diff --git a/sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/functions/CreateAndInstallVm.java b/sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/functions/CreateAndInstallVm.java
index f78c9b4b7f..fe36700e8c 100644
--- a/sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/functions/CreateAndInstallVm.java
+++ b/sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/functions/CreateAndInstallVm.java
@@ -110,7 +110,7 @@ public class CreateAndInstallVm implements Function<MasterSpec, IMachine> {
             transform(Splitter.on(" ").split(installationKeySequence), new StringToKeyCode());
 
       for (List<Integer> scancodes : scancodelist) {
-         machineUtils.lockSessionOnMachineAndApply(vmName, LockType.Shared, new SendScancode(scancodes));
+         machineUtils.lockSessionOnMachineAndApply(vmName, LockType.Shared, new SendScancodes(scancodes));
       }
    }
 
diff --git a/sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/functions/SendScancode.java b/sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/functions/SendScancode.java
deleted file mode 100644
index 3940f4aea8..0000000000
--- a/sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/functions/SendScancode.java
+++ /dev/null
@@ -1,69 +0,0 @@
-/**
- * Licensed to jclouds, Inc. (jclouds) under one or more
- * contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  jclouds licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.jclouds.virtualbox.functions;
-
-import java.util.List;
-
-import javax.annotation.Resource;
-import javax.inject.Named;
-
-import org.jclouds.compute.reference.ComputeServiceConstants;
-import org.jclouds.logging.Logger;
-import org.virtualbox_4_1.ISession;
-
-import com.google.common.base.Function;
-import com.google.common.collect.Lists;
-
-class SendScancode implements Function<ISession, Void> {
-
-   @Resource
-   @Named(ComputeServiceConstants.COMPUTE_LOGGER)
-   protected Logger logger = Logger.NULL;
-
-   private static final int MAX_SIZE = 30;
-   private final List<Integer> scancodes;
-
-   public SendScancode(List<Integer> scancodes) {
-      this.scancodes = scancodes;
-   }
-
-   @Override
-   public Void apply(ISession iSession) {
-      for (List<Integer> maxOrLess : Lists.partition(scancodes, MAX_SIZE)) {
-         long codeStores = iSession.getConsole().getKeyboard().putScancodes(maxOrLess);
-         logger.debug("List of scancodes sent: ", maxOrLess);
-         assert (codeStores == maxOrLess.size());
-         // TODO @Adrian if maxOrLess contains SPECIAL CHAR sleep should be higher than NORMAL CHAR (300 ms - 50 ms)
-//         if (Iterables.any(maxOrLess, Predicates.in(SPECIAL_KEYBOARD_BUTTON_MAP_LIST.values()))) {
-//            try {
-//               Thread.sleep(300);
-//            } catch (InterruptedException e) {
-//               logger.debug("There was a problem in sleeping this thread", e);
-//            }
-//         }
-         // TODO without extra check the extra time needed is more or less 250 ms
-         try {
-            Thread.sleep(250);
-         } catch (InterruptedException e) {
-            logger.debug("There was a problem in sleeping this thread", e);
-         }
-      }
-      return null;
-   }
-}
\ No newline at end of file
diff --git a/sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/functions/SendScancodes.java b/sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/functions/SendScancodes.java
new file mode 100644
index 0000000000..2366839638
--- /dev/null
+++ b/sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/functions/SendScancodes.java
@@ -0,0 +1,83 @@
+/**
+ * Licensed to jclouds, Inc. (jclouds) under one or more
+ * contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  jclouds licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.jclouds.virtualbox.functions;
+
+import static com.google.common.base.Predicates.in;
+import static com.google.common.base.Throwables.propagate;
+import static com.google.common.collect.Iterables.any;
+import static com.google.common.collect.Iterables.concat;
+import static com.google.common.collect.Lists.partition;
+import static org.jclouds.compute.reference.ComputeServiceConstants.COMPUTE_LOGGER;
+import static org.jclouds.virtualbox.settings.KeyboardScancodes.SPECIAL_KEYBOARD_BUTTON_MAP_LIST;
+
+import java.util.List;
+
+import javax.annotation.Resource;
+import javax.inject.Named;
+
+import org.jclouds.logging.Logger;
+import org.virtualbox_4_1.ISession;
+
+import com.google.common.base.Function;
+import com.google.common.collect.ImmutableSet;
+
+class SendScancodes implements Function<ISession, Void> {
+   static final ImmutableSet<Integer> SPECIAL_SCANCODES = ImmutableSet.copyOf(concat(SPECIAL_KEYBOARD_BUTTON_MAP_LIST
+         .values()));
+
+   @Resource
+   @Named(COMPUTE_LOGGER)
+   protected Logger logger = Logger.NULL;
+
+   private static final int MAX_SIZE = 30;
+
+   private final List<Integer> scancodes;
+
+   public SendScancodes(List<Integer> scancodes) {
+      this.scancodes = scancodes;
+   }
+
+   @Override
+   public Void apply(ISession iSession) {
+      for (List<Integer> maxOrLess : partition(scancodes, MAX_SIZE)) {
+         long codesSent = iSession.getConsole().getKeyboard().putScancodes(maxOrLess);
+         logger.debug("List of scancodes sent: ", maxOrLess);
+         assert (codesSent == maxOrLess.size());
+         if (any(maxOrLess, in(SPECIAL_SCANCODES))) {
+            sleepOrPropagateInterrupt(300);
+         } else {
+            sleepOrPropagateInterrupt(50);
+         }
+      }
+      return null;
+   }
+
+   @Override
+   public String toString() {
+      return "sendScancodes(" + scancodes + ")";
+   }
+
+   public void sleepOrPropagateInterrupt(long ms) {
+      try {
+         Thread.sleep(ms);
+      } catch (InterruptedException e) {
+         throw propagate(e);
+      }
+   }
+}
\ No newline at end of file