Transient Multimon Manager (TMM) is a feature on Windows Vista that is targeted at improving the user experience of connecting and disconnecting external displays. TMM automatically finds external displays at boot, it can also remember settings of the same external display if you connect it later.

TMM is great if you often want to connect your PC to any external display etc, but if you never use one you can speed up your boot by a few seconds by disabling your TMM. To disable your TMM just;

  • Open control panel
  • Open system and maintenance
  • Open Administrative tools
  • Click task scheduler
  • Expand task scheduler library (left column)
  • Expand Microsoft and windows
  • Click on MobilePC
  • In the middle column click on TMM
  • Right click and click disable
  • Done

Transient Multimon Manager

Or alternatively you can disable your TMM in your Regeditor;

  • Open regeditor
  • Go to this location
    • Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\TMM
  • Click UseIViewHelper
  • Set the value data to 0
  • Click OK

Transient Multimon Manager