how to upgrade windows 10

How to install Windows 10 from USB with ISO file
installing win 10 from usb requires usb boot or iso file windows 10. installing windows 10 with usb is not too difficult if you follow the instructions to install win 10 details below of tipsmake.com.
This is how Windows 10 to Win 7 or Win 8.1 does not need to be reset
many people after installing to windows 10 version want to downgrade the device and return to windows 7 and windows 8.1. however, in addition to the whole computer we have any way? the answer is yes...