Five times, press the SHIFT key: Enables or disables the lock keys
Hold down the SHIFT key for eight seconds: Toggles the filtering keys
Hold down the NUM LOCK key for five seconds: Turns on and off switching voice acting
Left ALT + left SHIFT + NUM LOCK: Toggles the mouse simulation keyboard
Left ALT + left SHIFT + PRINT SCREEN: Toggles high contrast on and off

Other key combinations

Shortcut Key The function of
F1 called Help.
F2 rename the selected folder or file name.
F3 desktop file search window opens.
F5 refresh a page.
F10 open the application menu.
Ctrl + A select all desktop objects.
Alt + Enter open object properties panel.
Alt underlined letter of the menu - the menu item can be selected.
Alt + F4 Closes the window.
Ctrl + C selected objects are copied to the computer's memory.
Ctrl + V paste previously copied object.
Delete deletes the selected object.
Ctrl + D deletes the selected object.
Alt + Tarpas To open the window menu.
Shift + F10 displays menu of the selected object.
Ctrl + Esc called the "Start" menu.
Alt + Tab select another window.
Ctrl + Z cancel last action.