alexo Posted November 12, 2009 Share Posted November 12, 2009 This happened to me with all the 3.5 betas and today with the final 3.5. The installation of a new version tries to uninstall the existing one first. When the uninstall progress bar reaches about 100%, the (un)installer hangs, using a lot of CPU but seemingly doing nothing. Using the SysInternals ProcMon shows that the MSI process apparently tries to open each every registry key in existence. Killing that process allows the installation to continue. Quote Link to comment Share on other sites More sharing options...
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