Have you ever been working in your SharePoint site and need to edit a list or a document so you go to “Edit List in SharePoint Designer” and you get a pop up asking you to install SharePoint 2007 or 2010 but you already have it installed? Did you reinstall it and it STILL asks you to install it? There are two main causes of this:
- You recently ran a registry cleaner, such as the excellent CCleaner.
- The SharePoint OpenDocument Class ‘Add-On’ is disabled in Internet Explorer
Both of these are easily fixed.
- For the registry issue, go to Control Panel -> Programs and Features -> Microsoft SharePoint Designer 2010 (or 2007) -> Change -> Repair
- If you need to enable the IE Add-On, go to IE -> Tools -> Manage Add-ons -> SharePoint OpenDocument Class -> Enable