How To Disable Smb2.0

Symptoms
If you are using Server 2008 and are experiencing slow downloading when opening Microsoft office documents, this will resolve your issue. It helps other applications as well.
Causes
Possibly, a very busy port on your switch.
How to fix
!!Warning!! You will need to modify the registry, so remember to backup your registry first. Also, if there are instructions that look unfamiliar, do NOT follow them-seek additional assistance.
1. open regedit
2. HKLMSystemCurrentControllSetServicesLanmanServerParameters
3. Add an REG_DWORD give it the name Smb2
4. Set the value to 0
5. Restart the computer.
6. Restart client computers that are Vista, Windows7, and Server 2008.