Connecting External Monitor, No Screen and Sound on Windows 10?

I bought a new dell laptop that uses windows 10. My previous laptops and desktops are windows 7. My dell laptop has 1920x1080 resolution. The thing is i always connect to an external monitor and use 1920x1200 resolution.


First off, i want to use my 24' monitor as my main monitor and the laptop monitor as the other monitor. I also have the laptop on the left side on my desktop. Thus any dragging i do from my external monitor, i want to drag it to the left side. Im having issues with even having my laptop monitor screen show up. I believe its extend both monitors right? When i did this, there was an issue with it. At the moment, im using main monitor only. I recalled this has to do with dragging the 1 and 2 boxes etc?


The other thing is there is no sound at all. On windows 7, i can fix this easily... not on windows 10. How do i fix this? Im guessing no sound because its using my my laptop at the moment?


The last issue is the screen solution. I want to use 1920 x 1200 resolution on my external monitor which acts as my main monitor. The issue was when i first connected my external monitor, the items were very tiny. I went to whatismyscreenresolution and it showed something like 2500x1400 resolution. However now it shows 1920x1200 resolution which is what i want. Why did it suddenly change to this? Also where is the option to change 1920x1200 to say 1920x1080 if i like on external? Could this monitor use 2500x1400 resolution if i wanted to?

This is very strange. I did extend the display and made my external monitor as the primary display. The issue is i want to move a window to the left to get to my monitor and not the right... that doesnt work. Then i did some trial and error and i have my external as my main display but still have that issue. Now other problem is the desktop icons on the external monitor is not on the left side of my monitor... its all the way on the right.


Can someone tell me how to fix this? So i got this issue along with the no sound issue. But i know i have to fix this issue with the icons going to the top right side of my external as oppose to top left.