Remove Computer From Domain -- no "Domain Admin" or "Local Admin" login ?

finance_teacher
finance_teacher used Ask the Experts™
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I am switching to a new Windows domain and have a few remote employees that refuse to drive to the office, therefore I cannot switch them right now

How can I remove a computer from a domain without needing the "Domain Admin" or "Local Admin" login when doing the below step #3 since
 1. I will no longer have the domain by the time the remote employee is onsite and
 2. Employee will not let me do a VPN/etc to their laptop since it is not on and
 3. I do not remember what CACHED "Domain Admin" or "Local Admin" users might be on really OLD machine, therefore I cannot rely on an old CACHED account ?

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STEPS
 1. login to "Domain" controlled laptop that is not on my domain
 2. change to "WorkGroup"
 3. get prompted for "Domain Admin" or "Local Admin" login
 4. enter login
 5. reboot
 6. change works
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JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018
Commented:
How can I remove a computer from a domain without needing the "Domain Admin" or "Local Admin" login when doing the below step #3 since

As far as I know, you cannot do this.

Employee will not let me do a VPN/etc to their laptop

Tell them (not ask) to courier the laptop back to you and you will service it that way.

The tail here is wagging the dog.
Commented:
For step 3, you can always reset current local admin password, therefore, you can always remove the computer from the domain.
There are several bootable cd/usb options to achieve this. Even an old product like http://trinityhome.org/ still works.
Shaun VermaakTechnical Specialist
Awarded 2017
Distinguished Expert 2018

Commented:
Use AeroAdmin/Teamviewer and disjoin from domain with a remote session
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Distinguished Expert 2018

Commented:
Your steps are fine, but if you're literally dealing with a difficult set of users.... I would recommend getting their managers involved.

3. I do not remember what CACHED "Domain Admin" or "Local Admin" users might be on really OLD machine, therefore I cannot rely on an old CACHED account ?
Kimputer answered this perfectly.
Shaun VermaakTechnical Specialist
Awarded 2017
Distinguished Expert 2018

Commented:
Except for that you need physical access to the computer or try to explain process to end-user
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
That is why I said have the unit couriered back for service.
Shaun VermaakTechnical Specialist
Awarded 2017
Distinguished Expert 2018

Commented:
and why I said use AeroAdmin/Teamviewer etc.
Unless you're in Russia, I advise against AeroAdmin just because they copied TeamViewer's entire look and feel and are based in Russia.  If you're in Russia you probably should avoid TeamViewer because it's a US corporation.
Shaun VermaakTechnical Specialist
Awarded 2017
Distinguished Expert 2018

Commented:
Yes, you've mentioned that a few times.  Nothing wrong with Remote Desktop sharing apps in general.  I just don't trust that Russian one that copied TeamViewer's look and feel.  First, it looks like theft of a legitimate product.  2nd, it's based in Russia, so not really trustworthy to the western world.
Shaun VermaakTechnical Specialist
Awarded 2017
Distinguished Expert 2018

Commented:
Yes, and I will continue to mention it

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