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ADPrep does nothing and waits

Today I was at one cutomers and they had two Windows 2003 domain controllers. They bought another server and wanted to install domain controller on Windows 2008 R2.

When I installed role Active Directory Domain Services I wanted to run adprep to modify AD forest and AD itself. When I ran adprep /forest my screen stucked on new line for a while. I thought adprep is working, but it was not. I waited at it for an 10 minutes. Nothing changed:


Stucked ADPrep

Stucked ADPrep


Also adprep log file was empty. 🙂

Appeartely adprep was not going to do his job. After couple Process Monitor lookings I found out that adprep is looking for directory “en-US”  in its own directory. But there was no “en-US” directory at my installation DVD:


Missing directory en-US

Missing directory en-US


I know that M$ started to create multilanguage packages and in those directories are stored just language versions. Then I just created directory en-us and copied content from cs-cz into en-us adprep started to do its work:


working adprep

working adprep


There is couple weird things:

  • Why do I have just cs-cz directory on my DVD even I use only english distros of DVDs?
  • Why did adprep say it’s missing directory?
  • Why adprep log was empty?
  • Why do I have English adprep even the directory was called cs-cz (Czech Republic)?
  • Why did adprepr didn’t fall into only one directory available?

I don’t think M$ will ever answer this question and neither they will fix it. 🙂 But thing is that when I was missing en-us directory, I could press “C” and Enter and adprep would do its job done and I would never know what has been done.


  1. trtraconis
    September 11th, 2013 at 14:56 | #1

    Thanks a lot!!! I had the same problem, but now I can migrate my old server 😀

  2. September 11th, 2013 at 15:01 | #2

    No problem. I’m happy it helped you out.

  3. Steve Lavoie
    October 16th, 2013 at 16:18 | #3

    Thanks you, it save me a lot of time 🙂

  4. bernard
    January 23rd, 2014 at 15:05 | #4

    Thanks a lot,
    i found your post after 2 hours searching…

    My AD server is W2003-EN

    My new is W2008-FR

    so when i ran adprep form W2008/Support DVD i had the same pb… nothing

    solved with “C” + enter

  5. January 24th, 2014 at 08:32 | #5

    I’m glad I could helped.

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