If you set the seagate as master and maxtor as slave and it will boot and recognize the slave drive. Then you can use a disc utility to clone the data including metadata from the seagate to the maxtor then swap them or remove the seagate and it will boot from the maxtor as the master hard drive. I use seagate disc wizard which I downloaded from seagates website to clone my hard drives. It's simple, straight forward and works great. Dell likes to do stupid things to keep you from modifying your pc without paying them. But a disc clone will copy everything including metadata that tells the motherboard it's the correct drive. Good luck.