Do I have to remove the vmhost from the vctr before I remove the vctr software?

I am going to install vcenter 6 instead of doing an upgrade because the upgrade keeps failing, but my question is, can I leave the vmhost in the vctr 5.1 while I remove the vctr software from the vm and then reinstall version 6 and then add the host back in?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I would disassociate the host first from vCenter Server 5.1.

Install vCenter 6.0, and then add the host.

It's a cleaner "installation".

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vmichAuthor Commented:
Yes but I would have to put the host into Maint mode first correct and that would involve moving off the vms from the host and then I would have host with no vms on it after all are removed correct?
vmichAuthor Commented:
never mind found it..
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
No, you can disassociated a host from vCenter, and it does not affect the VMs.

vCenter Server, is just a management server, it has no direct control over the hosted VMs.
vmichAuthor Commented:
yes got it thanks
vmichAuthor Commented:
when I am starting the install of 6 it is telling me that port 9443 is already in use and that the vsphere web client is trying to use that. What port can I change the vsphere web client to instead of 9443?
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
have you removed all vCenter Server ?
vmichAuthor Commented:
the web client was still there...
vmichAuthor Commented:
ok I got the new vctr 6 up and the host in but how can I add a domain admin account from ad to be able to login into the new vctr like we could with the 5.1
I am trying to login with the vsphere client with our admin account and password but it does not work
vmichAuthor Commented:
in other words I have to login with administrator@vsphere.local
Is there a way to use the AD administrator account like we did with 5.1?
vmichAuthor Commented:
I figured it out by going into the web client and add the domain and the domain acct...
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
login with administrator@vsphere.local

and add AD Accounts, or Source.
vmichAuthor Commented:
disassociate host from vctr
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