Hi there! My name is***** am a computer professional with over 15 years of experience with both Mac and Windows computers, phones, tablets, and printers. It would be my pleasure to assist you with this. Do you by any chance have an external keyboard that you can plug into the usb port on the ACER? If it is a hardware issue with the keyboard on your computer, that will allow you to login and to use your computer until you can get the keyboard on the Acer replaced. Please give this a try and let me know the results.