for those whose not running Windows Mail, you can prevent it to run at each startup and use about 4000 k of memory (processus). Go to regedit : HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft Select the windows mail in the left pane ans just add a new DWORD (32bit) in the right pane ManualLaunchAllowed and press enter. Just Log off or restart computer. PS: Run both x86 x64 windsman.