Yes, that is normal .
That is why you need to mark C Active and run startup repair 3 times.
I didn't just post that bit for the sake of extra typing. LOL
The instructions I posted earlier are complete and correct.
The D partition contained the boot files, bootmgr and the Boot folder containing bcd - deleting D obviously deletes those. Also, any changes to the partition offset mean you need to make corresponding changes to the bcd entries in order to boot. Startup repair will do that, as well as creating bootmgr, and the boot folder containing bcd on the partition you marked Active.
In case you missed it, here they are again:
It will be easier for you to do this - no need to reinstall ( use the Partition Wizard boot disc )
Delete D
Incorporate Unallocated space that was D into C.
Mark C Active
Run startup repair from 7 dvd 3 times.
That keeps the C drive letter assigned easily.
Then if you want another partition (s) - shrink C from the right - You can use Disk Management for that, if you like.