Installed windows 7, vs2010 and sql 2008 w/ SP1 without a hitch. Went to install live mesh and it complained that another instance of the installation was running (which to my knowledge was not). I managed to get live mesh installed, then I got the same kind of error from Adobe Reader. "Error 1500. Another installation is in progress. You must complete that installation before continuing this one.", Shutdown/Reboot does not cure the problem. Running Windows Update now, I get "Code 80070652 Windows Update encountered an unknown error."