Maintenance of Sharepoint Web Parts

For some reason, all the web parts ever added to a page in Sharepoint are actually never really removed when you delete them from the page. You can see this for example when you edit the page in Sharepoint Designer. Actually it is a good feature which allows you to retrieve webparts which could have been accidently removed by a user.

You can also remove or clean up the not used web parts in a page by using the Web Part Maintenance page.

It also allows you to remove buggy web parts which prevent your page to load.

You can access this maintenance page by going to the following page:

http(s)://[site-collection-root]/_layouts/spcontnt.aspx?url=[relative path to the page]