Fix Netflix Instant Install Silverlight Problem

    There is two possible fixes for Netflix Instant to not recognize Silverlight and prompt you to install Silverlight. To fix the most common problem where Silverlight isn't recognized by Netflix problem by resetting Internet Explorer under the Advance Tab of Internet Options in Windows.  Resetting Internet Explorer will fix the install  Silverlight error for Chrome and Firefox. If this doesn't fix the install Silverlight prompt issue your Browsers Silverlight Plugin is Disable or Silverlight will need to reinstalled.  

To Reset Internet Explorer Settings

Windows XP

Start > Control Panel > Internet Options > Advanced Tab > Reset Internet Explorer Settings

Windows 7 / Vista 
Windows Key/Start > Control Panel > Network and Internet > Internet Options > Advanced Tab > Reset Internet Explorer Settings

To Enable Silverlight Plug 

Internet Explorer 

Tools > Manage Add-ons >  on the Show: Drop down select All add-ons  > Select Microsoft Silverlight and Enable 

Chrome

                                   

Wrench > Settings > click Show Advance Settings > under Privacy > click Content Settings > Under Plug-ins > Click Disable Individual Plug-ins > Scroll Down to Silverlight and click Enable  

Firefox
Tools > Add-ons > Plugins > Scroll down to Silverlight plugin and Enable