If another keyboard is working properly on your machine, you will need to purchase a new keyboard. Also, we are recommending you to test your computer keyboard on another machine or to plug another keyboard to your current computer or notebook.
Open a text document (Microsoft Word, WordPad, Notepad or other) and test all keys by pressing them one by one. The faulty keyboard keys can not be fixed by doing any system changes. Method 2: Test your keyboardĭid you spill water or other liquid on your keyboard? If yes, you will need to replace your keyboard with the new one. Few users solved the problem on their Dell machines by unplugging all peripheral devices, cables, and batteries. If you are using a notebook, you should do the same steps, but an additional step will include removing the battery. If you are using a computer, we are recommending you turn off your computer and monitor, unplug all peripheral devices and cables, wait few minutes and then plug all cables back, turn on your machine and monitor. Method 1: Turn off your machine and unplug all cables We created 18 methods which will help you to solve this issue. So, what is the reason of this issue? There are different reasons including a problem with the keyboard, wrong system settings, the conflict between files, conflict with devices and others. This issue occurs on different operating systems, from Windows XP to Windows 10. What is the symptom of this issue? When you press Alt + Tab, Windows is not showing anything or it shows opened applications or documents for one or two seconds and then disappears. In this article, we will discuss Alt + Tab and problems why this combination keys stopped to work. Fast switching includes using combination keyboard keys Alt + Tab, Windows Logo + Tab, Task View or something else. When you are using more applications or more documents at the same time, fast switching between them is really important.
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