Actually, be sure all ports are working perfectly or not. This kinds of problem happen when port interface are loose.
change the bios settings of ur system.....always use hard disk in the first boot, 2nd bood and third boot......
You need to reset the CMOS battery in the main board to detect all the devices that connected to your main board.
hi, Is the device still installing and you forcely eject it. try to install the device but first check the BIOS if the Ports you are using are disabled or not. It may happen to all of us but it it only for sometimes.
I don't know which device is not detect in your system but if your audio or sound devices not found than use this method: right click "my computer"click "manage"click "device manager"click "sound,video and game controller open(audio codes,legacy audio driver,legacy video capture device,media control devices,video codes. i can choose any of them it shows this device is working properly.i go to start menu, setting,control panel select sound and audio "it showes "no sound device" i don't understand whats going on my video device is working properly.but there is no sound