I just installed Photoshop from the Creative Cloud Desktop application and after it installed, I noticed that I had two versions, one named "Adobe Photoshop CC" and another named "Adobe Photoshop CC (64-bit)". What is the purpose of having two versions? Is it nescessary to have both or should I uninstall one to save storage? If it helps, I have Photoshop(s) on a Surface Pro Tablet with 128 GB.
They support both 32 and 64 bit operation so as to give you maximum compatibility with older 32 bit-only plug-ins you may have.
If you have no older plug-ins you might want to use, you could conceivably just have the 64 bit variant.