So i'm getting ready to migrate my HDD to a Samsung 850 EVO SSD using Samsung's cloning software. Before I start to install the SSD, I started running a Windows Back Up and it's only at 20% after 5 hours. Now the thing is, I already have my music, personal files, movies, pictures, etc saved on several other external HDD's. Do I even need to be running a Windows Back Up of C: Drive? Before I started the Windows Back Up, I forgot to delete about 500 GB of games that are on my HDD, so I imagine this Back Up is going to take forever. Can I just cancel this Windows Back Up, install my SDD, Migrate the data from my HDD to my SSD or do you recommend letting Windows Back Up finish? If I don't need to have a Windows Back Up I'm going to delete all the games, large programs from my HDD so that it will fit on a 250 SSD when i go to clone the drive.