I needed to upgrade two Microsoft Windows 10 systems running QuickBooks Pro 2011 to QuickBooks Pro 2016 after the Microsoft Windows 10 Anniversary Update was installed automatically on those systems. QuickBooks Pro 2011 would stop working after the user tried to proceed past the user name and password prompt to open the company file - see QuickBooks 2011 crashes at startup. I found others complaining about the same problem after the Anniversary Update was installed. I resolved the problem by updating QuickBooks to QuickBooks Pro 2016, but that upgrade was not without problems as well.
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