Remove Win XP HDD from dual-boot Win XP/7 configuration

My computer configuration has two physical disk drives (C & D).
Disk C contains Win 7 Pro and disk D contains Win XP.
I would like to permanently remove disk D WITHOUT altering it and single boot Win 7 from disk C.
When I physically remove disk D, my computer cannot boot from disk C even though it is listed as a boot device in my BIOS.
How do I use EasyBCD to allow me to boot Win 7 from disk C?

EasyBCD 2.3 displays the following configuration information:
Default: Windows 7
Timeout: 30 seconds
Boot Drive: D:\

Entry #1
Name: Earlier Version of Windows
BCD ID: {ntldr}
Drive: D:\
Bootloader Path: \ntldr

Entry #2
Name: Windows 7
BCD ID: {current}
Drive: C:\
Bootloader Path: \Windows\system32\winload.exe

Thank you in advance for any help you can provide.


Knows where his towel is.
Staff member
Thank you very much for your help! For the benefit of other forum members, after I changed the boot partition from Drive D to Drive C and disconnected Drive D on SATA Line 0, I had to move drive C from SATA Line 1 to Line 0 before I could boot Win 7 from Drive C. I was then able to update single boot Win 7 to single boot Win 10.
Thanks again!