Answer:
You can only download x-box games to your pc if your computer is a windows 10 that has both x-box live and Microsoft store. Most x-box games available on the microsoft store requires an x-box live account to download, so you first need to create an account or sign in. Then, after fully syncing your account, you may start downloading games. But keep in mind, if your computer has a w10 hard drive but is a w7 body, some high-quality games might not work.