Go thru your HDD to eliminate all of the clutter. This will ensure none of your files get corrupted or lost when you replace HDD with SSD. The first thing you’ll need to do is backup your files to a flash drive or cloud storage system. Migrating to a smaller drive might sound like trying to fit a square block into a round hole, but it is possible. In most instances, this is the case because SSD’s cost more per GB than HDD. However, data transferring can get a bit sticky if your SSD has less storage capacity than the HDD you are trying to replace. Now, it is time to replace HDD with SSD by transferring files from your old drive to the new one.