After pressing the power button on the laptop or the system . Press the F9 key its only for some laptop if not know the key to enter into the boot menu
Select your usb drive name and press Enter . It asks for you to press any key click any key
Now click on the Install now and Select the language, Time and currency format
It asks for the product key if you have product key then enter the product key. If you do not have product key the click I don’t have the product key.
Enable the check box on I accept the license terms
And select the custom: Install windows only (advanced)
Select the Partition on which you want to install
Then click Next
Wait until everything gets green tick mark and then it shows to restart the pc click restart now