If your Compaq Presario CQ40-623TU is suffering one of these issues like wifi and bluetooth not working, sound stopped working, blue screen of death error (BSoD), black screen or screen flickering, in most cases, they are probably caused by outdated, broken or missing Compaq Presario CQ40-623TU drivers.
Update Drivers
HP Pavilion dv7-4003tx drivers are the important programs providing the software interface to the HP Pavilion dv7-4003tx hardware, which enables Windows Operating System and the programs to access the HP Pavilion dv7-4003tx hardware functions.
Update Drivers
HP G56-128CA drivers are vital to make your HP G56-128CA run properly. To maintain the stability and performance, you’d better download and update HP G56-128CA drivers from time to time. It’s common to run into various PC issues every time you get a Windows Update, such as wifi wont turn