How to activate or deactivate USB ports on your PC?

Many viruses are shared through USB ports today. Knowledge on how to enable or disable USB ports will be very useful for PC owners and especially System administrators.
Let's begin by defining some terms:

USB Port: A USB Socket on a computer, peripheral device or tablet into which

USB Portsa USB cable is plugged. More on USB Ports here.

Virus: A computer program that is usually hidden within another seemingly innocuous program and that produces copies of itself and insert them into other programs and usually performs a malicious action (as destroying data). More about viruses here.

Virus

We're back!!!!

So why deactivate your USB? Well, if you actually have interesting videos, MP3 files... on your computer, people will ask to copy those files for them and you need USB keys in tese situations. The second reason for this is your network security: corporate or school network for example to prevent employees or students sending corporate or school data to flash drives.

How to do this?

Deactivation

Follow these simple steps and that's it:
1..

On your keyboard, type Windows + R 2..Type <<regedit>> in the dialog box that appears and press Enter.

Your result will be as shown in this picture if you're using a Windows 7 or prior.

If Windows + R doesn't work ( your run is deactivated) go to C>>Windows and find the application named regEdit and launch it.3.. In the regEdit window, go to: HKEY_LOCAL_MACHINE>>>SYSTEM>>>CurrentControlSet>>>Services>>>USBHUB3 Your screen should look like this.