How To Upgrade Hard Drive Without Losing Data

I have an HP s5-1200z computer with Windows 7 Home Premium 64 Bit. I have been reading and trying different things for the last three days trying to upgrade my hard drive. The computer came with a 500GB and I want to use my 1TB instead. The first thing that I did was create a system image and a system repair disc. I then restarted my computer and booted from the system repair disc. I selected my keyboard setup and then received an error stating �This version of System Recovery Options is not compatible with the version of Windows you are trying to repair. Try using a recovery disc that is compatible with this version of Windows�I can not figure out why I am getting this error message. Many post say that it is because 32 bit vs 64 bit. My computer is 64 bit and the repair disc that I made is 64 bit as well. With no luck on upgrading my hdd I decided to take a different approach. I then cloned my 500GB to my 1TB using Easeus Partition Master Home Edition. Everything seems to be on the 1TB HDD it stated it was successful. I then removed the source hdd and installed the 1TB destination hdd, I turned the computer on and received an error "bootmgr is missing press ctrl+alt+delete to reboot." I also spent many more hours researching this problem, I can not find a solution. Many articles say boot from system repair disc and click repair your computer" when I try to do that I still continue to receive the error "This version of System Recovery Options is not compatible with the version of Windows you are trying to repair. Try using a recovery disc that is compatible with this version of Windows"I have read that having more than one hdd connected at once can cause boot errors. But I do not believe this is the case because my computer can only hold one hdd.I also downloaded the Windows Home Premium x64 from mydigitallife to try and repair my pc from there only to receive the same error.