Deleting driver registry entries that are locked?

I was told my the manufacturer of a tape backup drive (Echo) that in order to fix my problem I should search through the registry for certain names and delete the instances I find. Well, I found some, but when I try to delete them, I get an error message:

"Cannot delete <registry key>: Error while deleting key"

How can I delete this? Is there some sort of safe mode in Win2000 that I can boot to and do it? Or any other method?

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gunnConnect With a Mentor Author Commented:
I figured it out! Instead of using regedit, I used regedit32 and was able to select the "Permissions..." menu option for the registry key. I was then able to set it to Full Control for myself. Then, I was able to delete the key!

Now I'll have to see if I can reinstall this thing successfully.

If these are locked, it's undoubtedly due to the fact that this tape backup SW has it locked.  Stop the tape backup software.  It may be a service so you'll need to open the service control panel and stop it there.
you could also try rebooting in safe mode to remove the keys if stopping the tape software turns out to be a little more anoying then expected. Make sure you backup your registry as a precaution before you start altering the the registry db just in case.
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gunnAuthor Commented:
Ok, but how do I reboot Win2000 in safe mode?
gunnAuthor Commented:
All of the tape backup software has been removed. The tape drive also has been removed from Device Manager. However, when you go to reinstall the device, Win2000 does not popup the "New Hardware Found" dialog as it should for me to do a fresh reinstall. So, their tech support told me to delete these registry keys....which I can't because of the above registry error.
you can reboot into safe mode in windows2000 by hitting the F8 key during the bootloader part of boot ( the bit with the white bar accross the bottom. The reason I sugest this is it may not let you delete the keys you want to delete as they are in use so by booting into safe mode with minimun drivers loaded you should be able to get around this.
You need to make sure that something from the program isn't getting loaded into memory upon startup. There may be a load command somewhere that is starting a process that uses these registry entries. Check the following registry keys to see if something isn't there.



If there is something starting upon system startup it will be listed in one of these.

Also check your WIN.INI file just in case there may be a load command in there, it's unlikely but check anyways.

gunnAuthor Commented:
Ahhh, thanks. I didn't ever attempt to use F8 as in WinxP, Win98....

But anyway, I did boot into safe mode and...same deal. They're locked. I'll write back to their tech support and see what alternatives I have. No idea have to delete those registry entries otherwise; and almost scared to do so now.
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