I have Microsoft EdgeHTML 15.15063, but I want to update to the latest stable release of EdgeHTML. I regularly apply Windows updates, but the browser hasn't been getting updated automatically, despite the fact that it's the only way I know of to update the browser.
Is there a way to download a manual patch? Or is there something that might prevent Edge from getting updates?
I have Windows 10 Enterprise.
My solution: Thanks for the information. I have accepted the answer that led me to discover the actual problem. I found that my version update was failing. I ran chkdsk /r (which found and repaired a problem with Windows Update) and rebooted. My updates were able to be successfully installed after that.

Start > Runand typewinver, which version (1511, 1607, etc.) of Windows 10 do you see? – Run5k May 09 '18 at 16:00