Windows 10 IIS 503 error

IIS Rewrite Module Problem

It turns out that there’s a new version available that’s more recent (but doesn’t change the version number), and that needs to be installed in order to work. The version I found on the WebPI was dated a month ago (5/27/2015), and I suspect it’s meant to address just the type of problem I’ve been running into with my upgrade.

To install the module:
•Uninstall the Rewrite Module from Windows Features
•Go to the Web Platform Installer
•Pick Url Rewrite from Products | Server section and install
•Restart IIS

And bingo – my IIS installation is up and running again.