Sometimes you will need to deactivate a feature to hide the web part on the site. In this article, I’ll show you how to deactivate the feature in Site Collection Features in just a few clicks.
Open SharePoint PowerShell and run it as administrator. Then run this script:
Disable-SPFeature-Identity FeatureName -url <URL>
Disable-SPFeature-Identity “Bamboo.CalendarViewExtended”-url http://vschauo16
Click the Yes or Yes to All button.
Now, refresh your site to see the feature deactivated as expected.