Scenario:
User is not been reconnected to same Terminal Server session.
The consequences can be duplicated sessions, profile location lose, locked files on storage and more.
After few hours I found that Microsoft have A HotFix that addresses the issue
KB article is: KB977541
If “Install virtual machine guest service installation” is unavailable and grayed out, don’t panic. Just shut down the guest machine and it will become available.
It is not a bug, it is by design.
Although IP v6 is the next thing , if you not going to use it it can be simply disabled.
To disable IP v6 go to Start >Run type ncpa.clp and hit enter.
You will receive your network adapters list.
Press right click and properties on each adapter and remove selection from “internet protocol version 6” 
After you remove it run the following command from command prompt :
Remember you must run Command Prompt as administrator
| %windir%\system32\REG.EXE ADD HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters /v DisabledComponents /t REG_DWORD /d 0xff /f |
User Account Control (UAC) is a security component in Windows Vista/7 and 2008 .
It allows user to perform tasks with non administrative privileges. Some times the feature need’s to be disabled.
To disable it Click Start>Control Panel>User Accounts
In the User Accounts window, remove selection from “Use User Account Control (UAC) to help your computer”
Since windows Vista and Windows 2008 when performing some system tasks in command prompt ,
you must run CMD with administrative privileges.
To do that navigate to All Programs>Accessories right click on Command Prompt and chose “Run as administrator” 
You can chose Command Prompt to run always with administrative privileges.
To do that navigate to All Programs>Accessories right click on Command Prompt and chose “Properties”
Under properties navigate to “shortcut” and press advanced
Select Run as Administrator and OK.
From now CMD will run always as Administrator
When trying to access windows 2008 terminal server “Terminal Server Configuration” Snap-in you receive the error
“The settings for this terminal server cannot be retrieved”
To solve that issue:
If you can’t access your shared folders on windows 2008 check the thinks bellow.
The issue can happen if you have certain versions of Symantec Endpoint Protection or Antivirus installed
To resolve the issue update
To resolve this issue, upgrade the Symantec Endpoint Protection software to Symantec Endpoint Protection 11.0 MR3.
you can find more information on the issue Here http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2008091611042748 or http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2008091611042748)
In Windows 2008 Active Directory Users and Computers Microsoft activated new feature “Protect Container from accidential deletion”
During OU creation you have the ability to mark OU as protected from accidental deletion , and if you try to delete OU you will receive the following error “You do not have sufficient privileges to delete “OU Name” , or this object is protected from accidential deletion”
To unlock OU from accidential deleting protection do the following actions
I realy recomend download and print that.
The poster can be very useful when troubleshooting AD issues.