With all of the band saw blade guards removed or safely out of the way, you may now remove your band saw blade. Grab the blade near the top wheel, as shown in the image above. Pull the blade off of the two tracking tires, and rotate it 90-degrees so that the blade's teeth are pointing to your right. Guide the blade through the slot in the saw table, until it is clear of the band saw completely.
Once you've removed your blade, it is a good idea to fold the band saw blade in thirds, and tie the blade together for storage. Exercise caution when folding your blade, as can spring out as you're folding, which can cause a nasty cut.