The correct functioning of a personal computer is based on the good performance of the operating system. It sometimes crashes and Windows does not see the keyboard. The step-by-step instructions for troubleshooting the problem will depend on the type of keyboard connection: PS / 2 or USB.
Instructions
Step 1
When connecting a PS / 2 keyboard: plug the cable from the keyboard into the connector of the corresponding color located on the rear panel of the system unit, restart the computer.
Step 2
When connecting a USB keyboard, you need to activate USB support in Bios. Go to BIOS by pressing the "Delete" key when starting the computer. Find the USB Controller settings and check the settings to "Enabled". Save your changes by pressing the F10 or Y key. Log out of the Bios system by pressing F10 or "Y". Reboot your computer.
Step 3
If the application of the above instructions did not lead to a positive result, do the following: right-click on the shortcut "My Computer", find the item "Management". Select the category "Device Manager", find the keyboard in the list of devices and click on the inscription with the right mouse button. Select the "delete" item, reconnect the keyboard. Select the Update Hardware Configuration task in the Action section of Device Manager. You can also check the "USB Controllers" section for errors by selecting the "disinfect" function in the Device Manager menu.
Step 4
In addition to the complex reasons that Windows does not see the keyboard, there may be very minor ones: a pinched keyboard wire or the presence of a manufacturing defect.