Hot Corners is a feature in Windows 8 that allows users to access pre-defined shortcuts by moving the mouse cursor to the upper left-hand or upper right-hand corner of the screen. If you point your mouse cursor to the upper left-hand corner of the screen, the App Switcher or App Switch list appears, which allows you to switch between running apps or close running apps. Meanwhile, pointing your mouse cursor to the upper-right hand corner will display the Charms Bar, which provides quick access to the following shortcuts: Search, Share, Devices, and Settings. Now, with the Windows 8.1 update, users now have an option to disable Hot Corners as some users find it bothersome and ineffective. You also have an option to disable either one or both corners, whichever you prefer. To disable the Hot Corners feature in Windows 8.1, follow one of the options below:
OPTION 1: Via the Taskbar and Navigation Properties Screen
STEP 1: Right-click on the taskbar on your Desktop screen, then select Properties.
STEP 2: When the Taskbar and Navigation properties window appears, click the Navigation tab.
STEP 3: Under the Corner navigation section, uncheck the options you prefer to be disabled.
NOTE: The first option will disable the Charms Bar, while the second option will disable the App Switch list.
STEP 4: Click Apply, then OK to save the settings.
OPTION 2: Via the Metro Control Panel
STEP 1: Point your mouse cursor at the upper or bottom right-hand corner of the screen, then select Settings on the Charms Bar.
STEP 2: Click the Change PC settings option.
STEP 3: Click PC & devices, then click Corners & edges.
STEP 4: Look under the Corner navigation section, then disable the Hot Corner feature by changing its setting to Off.
NOTE: The first option will disable the Charms Bar, while the second option will disable the App Switch list. In the example below, we disabled the Charms Bar only.