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I have a problem when i turn on my computer i have a choice between microsoft
windows(which is vista) and windows.old(which is xp) when i go to
microsoft.old it comes up with a black screen and does nothing. When i type
in BCDedit in the comand prompt in vista it comes up with

Windows Boot Manager
--------------------
identifier {bootmgr}
device partition=C:
description Windows Boot Manager
locale en-US
inherit {globalsettings}
default {current}
displayorder {ntldr}
{current}
toolsdisplayorder {memdiag}
timeout 30

Windows Legacy OS Loader
------------------------
identifier {ntldr}
device partition=C:
path \ntldr
description Earlier version of Windows

Windows Boot Loader
-------------------
identifier {current}
device partition=C:
path \Windows\system32\winload.exe
description Microsoft Windows
locale en-US
inherit {bootloadersettings}
osdevice partition=C:
systemroot \Windows
resumeobject {50c73d4d-e6b3-11da-bc73-d30cdb1ce216}
nx OptIn

But what do i change and how do i do it.
Can someone please help