With Disk2Vhd, you can convert Windows 10 into a virtual system without much prior knowledge. The advantage of the freeware is that it’s started directly in the Windows installation to be virtualized.
Windows 10 can run on both 32-bit and 64-bit processor architectures. If you have a computer with a 32-bit setup, you can upgrade to the 64-bit version without acquiring a new license. The only caveat ...