How to remove corrupted web part from Sharepoint pages

Sharepoint doesn't store a physical aspx pages. They stored the pages in database and when an aspx have erratic web parts you cannot access the page from sharepoint designer in anyway to take away the web part that is causing the problem. And this issue could lead the sharepoint page not being able to render. One way to remove the problematic web part while having trouble accessing the page which host the web part is to get access to web part maintainance page. By appending ?contents=1 to the sharepoint page, you will be able to access to web part maintainance page and will able to remove the erratic web part. The link you should enter to access the web part maintainance should look something like http://mysharepointserver.com/default.aspx?contents=1

Once get access to the web part maintainance page you can either delete, close or reset the web part that is causing the problem.