The keyboard is not working and can not be accessed to BIOS

This problem always happens to me at some times and it is very annoying, as you find that the keyboard and mouse does not work with the beginning of the operation specifically in the treading screens, but once you take off to Windows you find that the mouse and keyboard work normally, and if you change them and experience the mouse and keyboard others also find them Do not work in the treading screens, so you will not be able to press Delete to enter the BIOS settings, but do not worry because I have radical solutions to this problem, God willing, through the lines of this topic

At first, let's analyze it, you have tried keyboard and mouse, so the problem has nothing to do with the keyboard and mouse. They also work inside Windows so there is no problem with their definitions. So the problem is in booting the computer before entering Windows and thus it is a problem with the BIOS. Is to remove the battery stone on the mouse, then turn on the computer and then shut down the computer and re-stone the battery again and then turn on the computer, and the problem was finally resolved

Note that I always prefer to remove the stone for 10 or 15 minutes and the machine does not work and then return it and the operation of the device and thus solve the problems of BIOS permanently and reset the settings to the default mode, but this solution did not work recently, I removed all the storage devices (Hard) in the computer Then turn on the computer without any hard connected and then disconnect the electricity and connect the hard then run the computer again and solve the problem