I deleted some kind of boot sector (but not my data)

[thinkswithportals]

Recently, I rather thoroughly demolished my Ubuntu installation, and so I decided to uninstall it. I went to the Windows Disk Management and found four partitions. One was labeled "System Reserved," one was the "C" drive, and two were blank and said they were made by "other operating systems." I assumed that these were the Ubuntu partitions and deleted them and expanded the "C" partition into them. This morning, I booted up my computer to find a message saying...
error: No such partition
entering rescue mode
grub rescue>_

I assume that my C drive is still there and working, so I just need to make my computer boot to it again.
I cannot restore the HDD with the Windows recovery disk. Do you have any suggestions?

 

[USAFRet]

One was labeled "System Reserved,"

I assumed that these were the Ubuntu partitions and deleted them

That System Reserved was the Windows boot info.

 

[mbreslin1954]

What version of Windows is installed? Do you have an installation disk for that version of Windows?