Just finished installing a fresh server with SharePoint 2010 Enterprise so an employee could look at the business intelligence dashboard stuff. While doing the install, I received an error about the MS Sync Framework 1.0 failing which caused the whole thing to screech to a halt. It would appear that I installed the .NET 4.0 stuff via Windows Updates which caused the .NET 1.0 Sync Framework to puke on me. Thankfully, MS had a hotfix for that which resolved my issue. You can see the Microsoft Sync Framework Runtime v1.0 listed on SharePoint 2010’s HW & SW requirements list.

http://support.microsoft.com/kb/962229

After I manually installed the hotfix, the “Install software prerequisites” continued and I had the SharePoint 2010 site up and running before lunch!