I recently bought Adobe Creative Cloud, so that I would have Photoshop and Lightroom on my computer. They both downloaded and installed fine, but now when I try to use them, Lightroom starts to launch and after about 3 minutes, quits and a window pops up that says "Adobe Lightroom cannot be opened because of a problem" and then it tells me to check with the developer. When I try to open Photoshop, it opens and then a window pops open that says that the library extensions can't be opened because of something about a signal. When Photoshop is open, it makes my computer very very slow, and the loading button pops up up like every two minutes and it takes my computer five minutes to catch up. I have my system updated to El Capitan. I've tried restarting my computer and resigning into my cloud. I would really appreciate some help! Thanks.