In this article, you will learn how to disable a monitor display in Windows 7. The first step is to navigate to your desktop. Right click on your desktop and select Screen Resolution (Figure 1).

Figure 1: Windows 7 Desktop Screen Resolution

The Screen Resolution control panel will appear and here you are able to change the appearance of your displays (Figure 2).

Figure 2: Windows 7 Screen Resolution Control Panel

Now select the monitor you want to disable, for this example I want to disable my secondary monitor (Monitor #2). After selecting the monitor, in the Multiple displays: field, select Show Desktop on 1 to disable monitor #2 (Figure 3).

Figure 3: Windows 7 Screen Resolution Show Desktop Only on 1

Now click OK to set the change. After clicking OK it will ask if you would like to keep your changes. Click on the Keep changes button to apply the change or Revert if you would like to revert to your old settings (Figure 4).

Figure 4: Windows 7 Confirm Display Settings

Now your monitor display should be disabled from extended display mode. To reenable your monitor display, follow the same steps but in the Multiple displays: field, select Extend these displays for extended desktop display.