The question: I have WIndows 10 x32 (or x86) Pro. It works ok but I want to upgrade RAM from 4GB to 16 GB. Tell me please, can I install Windows 10 Pro x64 instead of x32? Will my Windows 10 x64 activate or I need to buy a new licence? Thanks in advance.
Create a bootable flash drive with Windows 10 Pro x64 and perform a clean install. Do not enter the product key during the installation. If you have received Windows 10 x32 via upgrade program, the x64 version will activate automatically.