I used Macrium Reflect Disk Imaging and Backup to make my new 4TB HDD my main drive , when I cloned the 1TB drive to the 4TB drive, it made my 4 TB drive have 4 partitians (1.6 TB Im not even able to allocate for use!) and I just want 1 partitian so that I can use the whole 4TBs. How do I do this??? and how should I clear my 4TB so that it is just one partitian again?