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I have just installed Windows-8 preview twice, because at first I accidentally installed it at the wrong partition and now I have got 2 entries with Windows-8 in the boot loader and would like to get rid of the other one.

So how can I remove an extra boot loader entry in Windows-8?

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Did you format the first partition where you installed it accidently? If you did not then you have to format it again as the second boot entry has been merged with this one and will cause not to boot up the system if you delete it. Or may be the fix mbr could help you but I am not sure. – avirk Sep 19 '12 at 2:54
i formatted the first partition on the install screen before i installed it again on the second one, fixmbr doesn't seem to be available in win 8 :> – supernova Sep 19 '12 at 3:05
Try EasyBcd edit which can help you. – avirk Sep 19 '12 at 3:15
nice, that worked. thanks! – supernova Sep 19 '12 at 3:21
voted your answer up :-) – supernova Sep 19 '12 at 3:37
up vote 10 down vote accepted

You could also use MSConfig if you dont want to download a third party tool to do something thats already built into Windows.

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upvoted your answer, i didn't know that msconfig still existed, i used it several times on earlier versions.. – supernova Feb 20 '13 at 3:24
Still works in Windows 10 (or rather Windows-Technical Preview) too – benjymous Oct 15 '14 at 19:53
Boot loader shows 2 options, but only the current OS is shown in msconfig – Jimmy Mar 25 at 21:55
Actually boot loader shows 3 options; used instructions at… to remove one of them; now I see "Windows 10" which I want to keep, and one which I don't want to keep "Microsoft Windows XP Professional Setup" – Jimmy Mar 25 at 22:06
EasyBCD also only shows one option. It even says that Windows 10 is the default, which it is not. If I don't press anything in windows boot manager, windows xp setup starts. – Jimmy Mar 26 at 12:01

You can use EasyBCD which has the ability to control the bootloader and with it you can delete the bootloader entry.

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That is fast becoming a very useful tool. Remember that only the beta supports win 8 (last I checked at any rate) – soandos Sep 19 '12 at 3:34
realy nice tool with plenty of features to tune the boot loader – supernova Sep 19 '12 at 3:37

Go to sys.config and all OS will be shown. Remove the entry and set your default OS. See the image below for the system configuration I have only one OS in this machine.

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