How to install Windows 10 on your PC

4 Photos Mark Hachman (PC World (US online))

We'll walk you what you'll need to do to upgrade to Windows 10.

If you own a qualifying Windows PC, you had the option of “reserving” a free copy of Windows 10, an offer which will expire a year from now.
You have the option of using Microsoft’s tool either for upgrading the current PC, or to store the bits on a USB key for safekeeping.
Even better, you can select whether you want Windows 10 Home or Windows 10 Professional, either 32-bit or 64-bit versions, and even the installation language.
Make sure you allow Windows to grab updates as it goes.