Fix 5: Adjust Keyboard Repeat Delay and Rate.Here we summarized some of the quick fixes as below. As for laptops, it is a bit more complicated, but not possible. If these similar issues occurred to your desktop, it’s easy to just replace the problematic keyboard and use another one. Some reported that when I press a key on my keyboard, it types different letters, either specific letters don’t appear, or the keyboard is not typing letters at all. So, a keyboard is an essential peripheral for PC users, while a keyboard without working correctly seems to be quite annoying. Whether you are using a computer for entertaining, working, or both, typing is something that you are frequently doing on a daily basis.