Uninstalling Silverlight gives "the installation source for this product is not available. Varify that the source exists and that you can access. »

I can't remove Silverlight.

I want to update to Silverlight. When I try to download, the download fails and I get a message to uninstall the old version.  When I try to do, I get a message that says "the installation source for this product is not available. Varify that the source exists and that you can access. »

I have been in this situation and tried the solution here:

"How to manually clean a broken Silverlight installation.

Who has not completely worked for me, however, if I pulled upward from Regedit
(Start-> Run-> 'Regedit')
and searched the whole registry "Silverlight", deleting keys of parenthood which contain this string. (There was a large number of them).  When I did, I was finally able to reinstall Silverlight.

Note that editing the registry is dangerous, so make sure that you first create a backup of the registry and know how to restore it in case things go very wrong.
"How do back up and restore the registry in Windows XP"
  <>http://support.Microsoft.com/kb/322756 >

HTH,
JW

Tags: Windows

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