How to remove the left side navigation bar from Sharepoint

  1. Site Actions --> Edit Page
  2. Click Add a Web Part (left or right side, it doesn't matter)
  3. Scroll down and check the Content Editor checkbox

  4. You will see a message: "To add content, open the tool pane and then click Rich Text Editor";
  5. Click the "open the tool pane" link
  6. Click the source editor button, paste in the following code and click the save button:
    <style>
    .ms-navframe {
    display: none;
    }
    .ms-quickLaunch {
    display: none;
    </style>
  7. Expand the layout category and click the hidden checkbox to prevent the Content Editor Web Part from appearing on the page
  8. Click Exit Edit Mode

To change the Content Editor Web Part later:
  1. Site Actions --> Edit Page
  2. You will see a (Hidden) Content Editor Web Part
  3. Click the Edit dropdown button to Modify Shared Web Part or Delete
  4. If necessary, click Add a Web Part, then the "Advanced Web Part gallery and options" link
  5. Click "Hidden Web Parts under the "Browse" section
  6. Select your Web Part under the Web Part List section
  7. Click the Add button at the bottom