What is the role of W3SVC?

Question

Windows

After updating Windows 7 → Windows 10, I found out when trying to start a local server that port 80 was busy. After googling, I found the culprit - W3SVC Web Publishing Service.
Disabled it, but the question is, what role does it play, will its disabling become a problem in the future?

Answer 1

at you local iis web server is not lifted? if not, then it's all good

Answer 2

As oia wrote, these are pieces of IIS. The question is what is he doing there ... And you try to turn it back on and go to the localhost :) In general, I suspect this is some kind of Win Update distribution system.