Peripherals or CD/DVD Roms are not getting detected

It is noticed that most of you're worried about your peripherals not getting detected in the PC,and seems that though you've plugged the peripherals correctly and PC is upto date,then why isn't it getting detected. This is because the device you had recently changed or modified or plugged in might not have been accepted by the computer,so you need to do is

• Go to your control panel,then click on performance information and tools,then you can see a message there as "New hardware detected" beside that you can see a refresh now option click on that.Then the peripherals or any added external device will be detected

this works!