SATA HDD format causes BOOT failure

hello. my desktop has 2 SATA HDDs. WD 1TB SATA6 & SAMSUNG 160GB SATA3. I was doing Windows 7 installation on the 1st HDD(WD) using the 2nd one(Samsung). I formatted that by NTFS, then copied files from my Win7 disc, made that HDD active, & went for install. all went fine. installation was nicely completed. but the problem is that there was no SYSTEM RESERVED partition created which always happens if u do the install using DVDs. and then when I eject the HDD, I think maybe this is obvious, the OS failed to boot. but when I reconnect that HDD again, OS boots up successfully. it is certainly different but what is happening there?

Yes, of course. Both the HDDs were connected. and unfortunately I cannot post a screenshot of Disk Management. last night before turning off the PC I formatted the HDD which I used as the Installer. now PC won't boot up. I've to run installstion using DVD and then try out again I guess.

Thanks for the help. Got the solution. the SYSTEM RESERVED Partition was playing the game. The 2nd HDD always contained those BCD codes even after I setup Windows on the 1st HDD. thats why it didn't let me to boot up without the HDD. Thanks to all.