Silverlight Error 1603 Fix

You're trying to watch a movie like the one from NetFlix but the website says that it has encountered a problem and brings you to a page that gives you the error 1603.

Here's how to fix it:

1. In the Control Panel, open the Add/Remove Programs and uninstall Microsoft Silverlight if it is shown as installed by clicking on it and then clicking Uninstall or Remove. If you get an error on this step (for example a dialog saying that the msi file cannot be found), just continue on to the next step.

2. Using regedit, navigate to HKLM\Software\Microsoft\Silverlight and delete the key.

3. From an administrator command shell you can do this by running:

reg delete HKLM\Software\Microsoft\Silverlight /f

4. Using Windows Explorer, delete the “Microsoft Silverlight” directory from under Program Files.

5. From an administrator command shell on an x86 you can do this by running:

rmdir /s /q "%ProgramFiles%\Microsoft Silverlight

6. If you are on a 64-bit version of Windows, substitute ProgramFiles(x86):

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

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