How would I Format / Image this?

[xSDMx]

I have a WD Green with 465 GB, and a WD Black with 596 GB total.

I made the mistake of running my system drive as the WD Green, and I'd like to do the following without reinstalling Windows, or losing any files:

WD Black - C: 250 GB / D: 346 GB
WD Green - F: 465 GB

I am currently using 199 GB on the WD Green (266 GB Free), and 472 on the WD Black (124 GB Free).

My three major files on the Black are:

Downloads - 166 GB
Music - 120 GB
Videos - 171 GB

So, I figure the best way would be:

171 + 120 = 291 Music / Videos on the WD Green

And, 179 GB (including the small folders) on the D: drive.

How would I be able to pull this off?

 

[danman]

Buy another drive to backup to.