IT Answers » Windows Server 2003 Enterprise R2 http://itknowledgeexchange.techtarget.com/itanswers Tue, 18 Jun 2013 04:51:20 +0000 en-US hourly 1 Server 2003 STD R2 to ENT R2 setup error http://itknowledgeexchange.techtarget.com/itanswers/server-2003-std-r2-to-ent-r2-setup-error/ http://itknowledgeexchange.techtarget.com/itanswers/server-2003-std-r2-to-ent-r2-setup-error/#comments Sat, 24 Mar 2012 22:12:25 +0000 Jdaniel1127 Trying to upgrade Windows Server 2003 Standard R2 to Windows Server 2003 enterprise R2 and get an error when I select upgrade. “Setup cannot continue because some necessary information cannot be accessed in the registry.”
“An I/O operation initiated by the registry failed unrecoverably. The registry could not read in, or write out, or flush, one of the files that contain the system’s image of the registry”

I login as the domain Admin ( this is a secondary domain controller ) and even tried copying all of the file to disk and install from their.

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