Task Manager, Regedit, Folder option has been disabled by your administrator

Restore Task manager, Regedit  and Folder option in (3) three easy steps:

Start > Run > Gpedit.msc

REGEDIT:

in Gpedit.msc

     User Configuration > Administrative Templates > System > open "Prevent access to registry editing tools" choose enabled > apply > ok      and    open again choose disabled > apply > OK

TASKMANAGER:

in Gpedit.msc

     User Configuration > Administrative Templates > System > Ctrl+Alt+Del Options > "Remove Task manager" choose enabled > apply > ok      and    open again choose disabled > apply > OK

Folder Option:

in Gpedit.msc

     User Configuration > Administrative Templates > Windows Components > Windows Explorer> " Remove the Folder Option menu item from the Tools menu" choose enabled > apply > ok      and    open again choose disabled > apply > OK

Now you will access all the options without any popup. 

Recall or replace a message you've already sent

You can recall or replace a message only if its recipient is logged on and using Microsoft Outlook and has not read the message or moved it from their Inbox.

1. In Mail, in the Navigation Pane, click Sent Items.
2. Open the message you want to recall or replace.
3. In the message window, on the Actions menu, click Recall This Message.

    NOTE   This command does not appear unless you are using an Exchange e-mail account.

4. Do one of the following:

   Recall the message

   1. Click Delete unread copies of this message.
   2. To be notified about the success of the recall or replacement for each recipient, select the Tell me if recall succeeds or fails for each recipient check box.

   Replace the message

   1. Click Delete unread copies and replace with a new message.

   2. To be notified about the success of the recall or replacement for each recipient, select the Tell me if recall succeeds or fails for each recipient check box.

   3. Click OK, and then type a new message.

 NOTE   To replace a message, you must send a new one. If you do not send the newitem, the original message is still recalled.