Your network contains an Active Directory domain. All client computers run Windows 10.
A client computer named Computer1 was in storage for five months and was unused during that time.
You attempt to sign in to the domain from Computer1 and receive an error message.
You need to ensure that you can sign in to the domain from Computer1.
What should you do?

A.
Unjoin Computer1 from the domain, and then join the computer to the domain.
B.
From Active Directory Administrative Center, reset the computer account of Computer1.
C.
From Active Directory Administrative Center, disable Computer1, and then enable the computer account of
Computer1.
D.
From Active Directory Users and Computers, run the Delegation of Control Wizard.
Right answer is A.
Anyway after resetting computer password you can’t sign to domain until rejoin computer to domain.
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A is correct, there is no chance you can login with domain account after trust fail no matter reset, you can only login with local admin which you will reset through 3rd party tool.
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First of all, the answer IMHO would indeed be A.
That said, throughout my career I’ve had to unjoin/rejoin so many computers after they came back from vacation, so I always assumed the AD locked out the computer account.
So imagine my suprise when I spoke to our AD veterans today, and they told me pretty much what it states here:
https://blogs.technet.microsoft.com/askds/2009/02/15/machine-account-password-process-2/
Mind… blown…
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Answer B is unfinished business, you need to rejoin the computer as step two. so I’ll go for Answer A.
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I believe A is correct as well.
I have unjoined and rejoined machines that throw the trust errors when it loses it against the domain.
You can reset the computer account not to lose the unique ID and the membership but if it has been sitting unused for 5 months, I doubt anything needs to be retained.
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I think the “Microsoft way” is to use ADAC to preserve the information for security purposes etc although i do not use this method and would always go for unjoin / rejoin. Remember when taking exams its often the “Microsoft Way” that they look for!
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