Gateway NV55C upgrade

Hi,

As long as the laptop or PC meets the minimum requirements you can upgrade it to Windows 10 which in your case you can. If you're planning on doing a clean install of Windows 10 please use the link below for the guides.

How to create a bootable Windows 10 USB or disc:
http://www.tomshardware.com/faq/id-2745957/create-windows-installation-usb-drive-dvd.html

How to install Windows 10:
http://www.tomshardware.com/faq/id-2569562/install-windows.html

And if you're just planning on doing the upgrade, here's how.
http://www.tomshardware.com/faq/id-2728769/upgrade-windows-windows.html