Introduction Suddenly this Monday, the PC hosting the bug tracker site jumped from Win10 1611 to 1709. At the end of the upgrade process, the site was not available anymore. IIS seemed up and running, but something occurred and put the site offline. Looking at the event log, I saw swarms of the following errors: Error 2307 – IIS-W3SVC-WP The worker process for application pool … Continue reading IIS is not working anymore after a system upgrade »