Why Do the Two Alt Keys on My Keyboard Have Different Functions?

The presence of two Alt keys on a keyboard is designed to enhance usability, particularly for users who frequently use keyboard shortcuts. Here are some reasons why they might have different functions.

Operating System Shortcuts

On Windows, the left Alt key is often used in combination with other keys for shortcuts, such as Alt F4 to close a window. Meanwhile, the right Alt key might be labeled differently or have a different function. For example, pressing Alt Tab switches between open applications, while the right Alt key might serve as an escape key or have other custom functions depending on system settings.

Keyboard Layouts

Different keyboard layouts may assign different functions to the Alt keys. For instance, in some layouts, the right Alt key may allow access to special characters or alternate functions that are not available through the left Alt key. This can be particularly useful when working with non-English languages or specific types of input.

Accessibility Features

Some keyboards have accessibility features that allow users to customize the functions of the Alt keys. These features can be particularly helpful for users with disabilities. For example, the right Alt key might be remapped to a function that assists visually impaired users in navigating their system more effectively.

Programming and Customization

Certain software applications allow users to customize keyboard shortcuts. As a result, the functionality of the two Alt keys can differ based on user preferences and specific application settings. This is especially relevant in programming environments where users might remap keys according to their workflow.

If you are experiencing unexpected behavior from one of the Alt keys, it may be related to your keyboard settings or the specific applications you are using. Adjusting your keyboard settings in your operating system might help standardize their functions.

IBM and Keyboard Customization

IBM designed the Personal Computer keyboards so that every single key sends a different code. Therefore, the numbers above the letters and the numbers on the numeric keypad will have different codes, as will the left and right Shift keys. Software can therefore treat any key in any way the developers want.

Graphic Driver Control Panel

The right Alt key has been commandeered by a Graphic Driver control panel. This can interfere with the functionality of the key. There should be a corresponding item in your notification tray that allows you to enter and reconfigure the keyboard preferences. By doing this, you can set the right Alt key to function normally again.

If you do not regularly change screen orientation, you should have no further trouble. However, if you need to change orientation, you will have to do so through the system settings or the graphic driver control panel to ensure that the right Alt key behaves as expected.