Unfortunately, as far as I can determine, there is no Windows Essentials version for Windows 10. The latest is for 8.1
II do recall reading some time ago that Microsoft intended to discontinue Essentials, which is a damn shame. I've been using it for about three years and so far I've had no problems. Now and then I'm alerted to a quarantined item, which I assume is either a virus or malware, and I remove it with one click.
Whenever I shut down I've noticed there often are up to ten updates waiting to download and install. I believe these updates are virus signatures which Essentials is protecting me against. So it is likely that the effort required to perform this valuable service has become a burden on Microsoft, which is why they've decided to discontinue it.
Very disappointing.