Let's say you've installed Windows XP, Windows Vista and Windows 7 on separate partitions. During the boot process you'll see the following choices:
Earlier Version of Windows, Windows 7, Microsoft Windows Vista
Now let's say your beta version of Windows 7 is about to expire and you'd like to make Windows XP the default operating system. Simply install EasyBCD by NeoSmart Technologies and make the change:
(Windows Vista isn't shown as a choice because I do not have it installed on this machine)
PROBLEM: At this point if you restart your machine and attempt to launch Windows XP, you'll encounter the following error:
Windows failed to start...
File: \ntldr
Status: 0xc000000f
SOLUTION:
- From Windows 7 launch Disk Management and locate the hidden Windows XP partition based on size:
- Assign the Windows XP partition a drive letter:
- Associate the Windows XP boot information with that drive letter in the EasyBCD settings:
