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I try to install Exchange 2010 Sp2 on a fresh environment (the first Exchange server in the environment ) and I do all the Prerequisites and I prepare the 2003 DC by the windows server 2008 preparation tool (that cam in the windows server 2008 DVD )

and I run the setup /ps command from windows server 2008 R2 join to the domain (the server that I will install the Exchange 2010 SP2 on) and it is Success

the problem is when I apply the setup /p command this error came up

the parameter 'preparead' cannot have a value

Any help, I will be grateful to you

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up vote 2 down vote accepted

If that's the exact command you ran, then you're missing a slash:

setup /p /
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