How to reset credentials used to log into Exchange Management Console 2010?

I have two separate Exchange 2010 servers that the EMC is using the "wrong" credentials.  What I mean is that I fire up EMC and, during the initialization status window, I see that it mentions a username other than the designated Exchange administrator account.  When EMC is running, it is missing some of the configuration items, as the wrong user account doesn't have the appropriate privileges.  

What I want to do is reset the credentials that EMC uses so that I can specify the correct Exchange administrator account.  Googling has resulted in a bunch of articles that talk about resetting passwords on mailboxes via EMC but nothing about resetting the account that's used to log into EMC.  How do I fix this?
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SINC_dmackAuthor Commented:
The only workaround that's worked is to create a new ADUC account, give it the appropriate permissions, and then log into the server using that account.  EMC uses that account's permissions and I can fully manage Exchange.  But that's not the "right" solution.
Will SzymkowskiSenior Solution ArchitectCommented:
have you tried checking the cached credentials on the machine?

I would check that first.

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SINC_dmackAuthor Commented:
How do I find the cached credentials for EMC?
Will SzymkowskiSenior Solution ArchitectCommented:

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SINC_dmackAuthor Commented:
That did it--after removing the cached credentials from Credential Manager, EMC starts up and uses the credentials of whatever user is logged into Windows at that time.  I keep forgetting about the Credential Manager.

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