In Windows 7 you can switch your display to projector or monitor with one of the below 4 ways:
- Computer only (This shows your desktop only on your computer screen.)
- Duplicate (This shows your desktop on both your computer screen and a projector.)
- Extend (This extends your desktop from your computer screen to a projector.)
- Projector only (This shows your desktop only on a projector.)
And “Computer only” is the default one,and you can use one of the following 2 ways to other display method by default after Windows 7 startup.
1.Open Registry Editor (Start — type “regedit” –then “Enter”)
2.Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
3.In the right panel,right click and select “New — String Value” ,then rename this string(eg:Autoswitch).
4.Double click this entry and set the value data to “C:\Windows\System32\DisplaySwitch.exe /clone”
5.Done.After you restart your laptop,the above command will be excuted
Put “C:\Windows\System32\DisplaySwitch.exe /clone” into a txt file,eg:auotswitch.txt ,then rename autoswitch.txt to autoswitch.bat,then right select(right click and do not release the mouse) this file and drag it under Start –All Programs–Startup