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Recover Registry

Posted on 2005-05-12
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Due to misconfiguration of registry security settings, system cannot start. I need to revert the change (All hives involved).

What I have done:

Boot to Recovery Console Mode, rename all registry hives in %systemroot%\winnt\system32\config.

Copy all those files from %systemroot%\winnt\repair to original location.

Since after the initial installation, no backup has been done. Now my system is at the state of the first reboot after the new installation.

Question is, is there a way to open the renamed registry hives and revert the change?

Thanks a lot
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Question by:igmp
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by:CiaranDolan
ID: 14003987
Quick answer - No.

Longer answer - no but you can get part of the way there.

You need to identify the major changes between the new 'install' and the old one. Now, you can either reinstall all the packages you installed since the first installation (ugly) or export each of the hives associated with them. List them out and list the hives. Export them one-by-one from the dead hive and then import them into the live hive. You will still have a load of settings to configure but it's closer than nothing.

In al honesty, I've never really done this to a server. I generally reformat and start again. Maybe I should write a FAQ on how to do the poor mans cluster that I've put in place in a few places.
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by:igmp
ID: 14033324
Thanks CiaranDolan,

I luckly find out the solution:

Look for a tool (I forgot the name) which can open offline hives. Export corresponding hives into live registry. Roll back the change has been made. Then overwrite the current hives.

It works perfectly. The system was recovered as it was.

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