I have a Dell inspiron 14z 5423 with windows 10 operating system, I installed a USB to VGA adapter to this computer to be able to connect external monitor. after the installation the laptop quit working, i can see only power indicator and the laptop is totally dead, some times I can see all the indicators and its doing startup but without loading the operating system just black screen, and some times it starts to eject the DVD drive and beeps for three times and keep doing this till I reset it by removing the CMOS battery.