I do not know what you mean by H size and V size. There is a button that moves the screen horizontally but that does not reduce the size of the screen. There is also a button that moves it vertically but that does not reduce the size either.
I tried using that H size button and I moved it from 0 to 100 and back to 0 but it did not do anything. If the computer screen is stretched too wide, what number should I set it on?
Try these steps:
Check the connection of monitor and port to make sure it is tight, well put and no pins are bent or damaged.
Try to restart in safe mode by:
Check whether the problem remains with safe more or not. If not its an adapter problem,the settings need to be changed and drivers should be updated.
If this doesnot works than your monitor needs to be repaired. What is the display card model/make? Update the drivers for your display card.
I tried it in safe mode and the problem is still there. ThHe screen is still too large. I checked the ports and they seem to be okay. What else can I do? Do you think I should call Microsoft for advice?
What is a graphic card? I have no idea which graphic card I am using. How do I update my graphic card?
Run bellarc advisor from here: http://www.belarc.com/free_download.html
It will build a profile of your hardware and software, paste the information from the report which contains something like "display adapter" or "graphic adapter" or somthing similar.
Or check in device manager by:
Click on Start > Run
Type devmgmt.msc and press enter
Here expand "display adapters"
The adapters will be shown.