Oh my god! I finally got Silverlight removed after months. There’s been this Windows Update sitting forever on my Windows 7 laptop that’s supposed to update Silverlight, but it keeps failing. I tried to solve this by updating Silverlight at their website. Instead, when I ran the installer, it said it couldn’t find the msi to uninstall the previous version. I tried uninstalling Silverlight with Add/Remove Programs, but that didn’t work either. Different websites gave different solutions: None worked. (Dot dot dot) until now! I found this in a forum: http://forums.silverlight.net/forums/p/23415/83181.aspx

Instructions distilled:

Run regedit. Delete this key: HKEY_CLASSES_ROOT / installer / products / D7314F9862C648A4DB8BE2A5B47BE100

Bam. Done.

After that, I was able to successfully update Silverlight from the website. And the next time I ran Windows Update, nothing failed.