Locating Win10 driver Is it true that "the Google USB Driver is located in android_sdk\extras\google\usb_driver."`

Because I have none and I have installed Android Studio.
Is it true that "the Google USB Driver is located in
  android_sdk\extras\google\usb_driver."


Yes that's the default location where the downloaded google usb drivers are located.

If you can't find them, then it may be that these were not downloaded in the first place. Be sure to download them through the sdk manager interface. 

Alternatively you can always download the appropriate OEM driver manually from the website and extract them to the default folder.

Installing the USB driver


Connect your Android-powered device to your computer's USB port.
Press the WIN Key +  X buttons and select device manager
In the Device Manager right pane, locate the device
and right-click the name of the device you connected, and then select Update Driver Software.
In the Hardware Update wizard, select Browse my computer for driver software and click Next.
Click Browse and then locate the USB driver folder. You can also select the option; Let me pick from from a list of device drivers on my computer then browse for the driver. e.g, the Google USB Driver is located in android_sdk\extras\google\usb_driver\.
Click Next to install the driver.