If you didn’t try it yet, try to uninstall Microsoft Silverlight from Control Panel with Add/Remove Programs applet (Programs on Vista, Programs and Features on Windows 7). Start the applet, find the Microsoft Silverlight installation in the list of installed programs and uninstall it by clicking on Uninstall or Remove button. If you get an error message, then try to remove it with the manual methods placed below or with the automatic removal utility.

Unless you are very experienced PC user with strong skills in Windows system management, then the second manual method of the removal is the right choice for you. If this way seems to be too hard for you to make it through, then remove Microsoft Silverlight with a Free Uninstall It wizard that you can download here.

How to uninstall Microsoft Silverlight manually?

Method 1

Be careful and delete only what is listed below in you system registry. If you delete something wrong you might disable some other program, or your operating system will become inoperable and will need to be reinstalled.

1. Enter your system as Administrator
2. Click Start, and then click on Run.
   • Type regedit in the Run box and click on OK
   • In Registry Editor expand My Computer
   • Expand HKEY_CLASSES_ROOT and find INSATLLER
   • Expand INSTALLER, and then expand PRODUCTS
   • Under PRODUCTS right-click {D7314F9862C648A4DB8BE2A5B47BE100}
   • Click Delete
3. Close Registry Editor
4. Open Command Shell
   • Type reg delete HKLMSoftwareMicrosoftSilverlight /f at the prompt, and press Enter
   • For 32-bit systems type rmdir /s /q “%ProgramFiles%Microsoft Silverlight and press Enter
   • For 64-bit systems type rmdir /s /q “%ProgramFiles(x86)%Microsoft Silverlight

Method 2

1. Open Notepad text editor.
   If you don’t know where it is, just type Notepad in the Search box. Double-click on Notepad from the list of results at the top of Start menu
2. Copy and paste the following text into Notepad window.
   • reg delete HKLMSoftwareMicrosoftSilverlight /f
   • reg delete HKEY_CLASSES_ROOTInstallerProducts{D7314F9862C648A4DB8BE2A5B47BE100} /f
   • reg delete HKEY_LOCAL_MACHINESOFTWAREClassesInstallerProducts{D7314F9862C648A4DB8BE2A5B47BE100} /f
   • reg delete HKEY_CLASSES_ROOTTypeLib{283C8576-0726-4DBC-9609-3F855162009A} /f
   • reg delete HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionApp Pathsinstall.exe /f
   • reg delete HKEY_CLASSES_ROOTAgControl.AgControl /f
   • reg delete HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionUninstall{89F4137D-6C26-4A84-BDB8-2E5A4BB71E00} /f
   • rmdir /s /q “%ProgramFiles%Microsoft Silverlight”
   • rmdir /s /q “%ProgramFiles(x86)%Microsoft Silverlight”
3. Save this file on the desktop as UninstallSilverlight.cmd
4. 4.
5. Right-click the CleanSilverlight.cmd file on your desktop and click Run as administrator

The issue might be related to Media Streaming with third party players loaded from the internet. If this is the case just reset Internet Explorer to default settings.

After you successfully uninstall Microsoft Silverlight from your computer, you can try to update or install a new version from Microsoft.com

If all the listed instructions doesn’t make sense for you, then you might solve this problem with the special removal utility that performs all the tasks automatically and resolves all possible conflicts.