SharePoint Web Parts Maintenance Page

SharePoint web part maintenance pages allows to manage (reset, delete) the web parts embedded into a particular page. It's useful in situations where its required to remove any web parts from a page which has caused a page crash.

For an instance if the page urls is:

http://localhost:1000/SitePages/Home.aspx

you can get the maintenance page by typing in "?contents=1" at the end of the URL string. Below is a sample:

http://localhost:1000/SitePages/Home.aspx?contents=1

This works the same in  SharePoint 2007, 2010 and 2013