The following is a known service pack installation issue for customers with Autodesk Navisworks 2010 and Autodesk Navisworks 2010 for Manufacturing installed side-by-side. There are separate service packs for Navisworks 2010 and Navisworks 2010 for Manufacturing, each of which looks for its release of Navisworks Manage, Navisworks Simulate and Navisworks Review (in that order), when it finds one it checks to see if it is the kind of product it can upgrade and stops if it isn't. 
 
If you have a mix of Navisworks 2010 and Navisworks 2010 for Manufacturing products you will need to:
• Uninstall Navisworks Manage if applying the service pack to Navisworks Simulate
• Uninstall Navisworks Manage and /or Navisworks Simulate if applying the service pack to Navisworks Review. 
Once you have successfully installed the service pack then re-install Navisworks Manage and / or Navisworks Simulate and re-run the service pack.

For example, if you have Navisworks Manage, Navisworks Simulate for Manufacturing and Navisworks Review installed, to install the service pack for all products:
1. Uninstall Navisworks Manage and Navisworks Simulate for Manufacturing. 
2. Apply the Navisworks 2010 Service Pack 1 to Navisworks Review.
3. Re-install Navisworks Simulate for Manufacturing and apply the Navisworks 2010 for Manufacturing Service Pack 1.
4. Re-install Navisworks Manage and apply the Navisworks 2010 Service Pack 1.”