How to fix Silverlight Installation failed error

 This guide will show you How to fix Silverlight Installation failed error. Microsoft Silverlight is a powerful tool for creating and delivering rich Internet applications and media experiences on the Web. Silverlight 5 builds on the foundation of Silverlight 4 for building business applications and premium media experiences.

RECOMMENDED: Fix this issue in 3 simple steps. Takes only 2 minutes.

1) Download repair utility.

2) Install program and click Scan button.

3) Click Fix Errors button when scan is completed.

4) Restart your computer.

Silverlight 5 introduces more than 40 new features, including dramatic video quality and performance improvements as well as features that improve developer productivity. Check here for more information about Silverlight. Silverlight works on all major OS’s plus all major browsers, including Firefox, Google Chrome, Safari, and yes, Internet Explorer.

How to fix Silverlight Installation failed error

This issue can occur if an existing installation or uninstall has become corrupt. When working with Microsoft Silverlight you may encounter the following scenarios:

  • Install Microsoft Silverlight
  • Upgrade to another version of Microsoft Silverlight
  • Uninstall Microsoft Silverlight
  • Microsoft Silverlight does not work as expected

How to fix Silverlight Installation failed error?

Follow the below listed resolution steps to fix the issue with Microsoft Silverlight installation failed error.

Warning : Before making any changes in your computer, I suggest you to create a System Restore point  so that you can restore back your computer to previous working stat if something goes wrong. 

Method 1: Clean corrupted Silverlight installation and then reinstall Silverlight.

To automatically uninstall Microsoft Silverlight, click the button in the “Fix it for me” section.

Fix it for me

assets fixit1Fix this problem
Microsoft Fix it 

assets fixit2Note :This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.

Note :If you are not currently using the computer that is experiencing this problem, you can save the automatic fix to a flash drive or to a CD, and then you can run it later on the computer in question.
When the Fix it solution has completed, click the link below to install the latest version of Microsoft Silverlight:

  1. To resolve this issue yourself, follow these steps:
  2. Click Start and type Notepad in the Search box
  3. Double-click on Notepad from the list of results above
  4. Copy and then paste the following text into Notepad.

reg delete HKLM\Software\Microsoft\Silverlight /f

reg delete HKEY_CLASSES_ROOT\Installer\Products\D7314F9862C648A4DB8BE2A5B47BE100 /f

reg delete HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\D7314F9862C648A4DB8BE2A5B47BE100 /f

reg delete HKEY_CLASSES_ROOT\TypeLib\{283C8576-0726-4DBC-9609-3F855162009A} /f

reg delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\install.exe /f

reg delete HKEY_CLASSES_ROOT\AgControl.AgControl /f

reg delete HKEY_CLASSES_ROOT\AgControl.AgControl.5.1 /f

reg delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{89F4137D-6C26-4A84-BDB8-2E5A4BB71E00} /f

rmdir /s /q “%ProgramFiles%\Microsoft Silverlight”

rmdir /s /q “%ProgramFiles(x86)%\Microsoft Silverlight”

5. Click File and Save As and type CleanSilverlight.cmd
 6. In the Save as type box, click All Files (*.*)
7. In the Save in box, click Desktop, and then click Save.
8. On the File menu, click Exit.
9. Right-click the CleanSilverlight.cmd file on your desktop and click Run as administrator.

10. When the uninstall completes, right-click the CleanSilverlight.cmd file on your desktop and click Run as administrator a second time.
11. Once the uninstall has completed, click the link below to install the latest version of  Microsoft Silverlight.

  12. Delete the CleanSilverlight.cmd file from your desktop.

Method 2: Uninstall Silverlight software using Revo Uninstaller Pro. And then reinstall Silverlight.

Check here for more information about Microsoft Silverlight.

Learn How to uninstall applications in Windows.

  1. Download and install the Revo Uninstaller.
  2. Select Silverlight and uninstall it.
  3. Wait till the process is completed.

Revo - How to fix Silverlight Installation failed error Revo - How to fix Silverlight Installation failed error


Microsoft designed Silverlight with the ability to deliver high-fidelity experiences on the broadest set of system configurations. Some features, such as HD video, may benefit from the power contained in newer personal computers. Check here for more information about Microsoft Silverlight. Learn How to uninstall applications in Windows. Know Why use Revo Uninstaller Pro?

Arun Prabhakar

Arun Prabhakar immensely interested in following Windows and other technology developments. Being passionate Windows blogger, he loves to help others on fixing their computer issues.