Windows 7 not allowing backup on clean install

urbancamper

Distinguished
i just finished a clean install of Windows 7 with sp1 and all updates. I went to Windows backup to make a system image on my empty 300gb backup drive. Windows says there is not enough space for the 51gb image.

I have used this drive in the past for same with no problems. Also checked to see if 300gb drive has any errors or bad sectors, and for shadow copies.The volume is clean and free of errors