just roll it up-
pun intended. the carpet is hooked to a thin wooden strip with a bunch of small angled spikes that grab the carpet whhen it's stretched. go to the corner of the room, take a fork and peel up the corner, then just peel it off the tack strip(spiky wood strip).
roll up carpet and store in garage. under the carpet will be the pad. it's just stapled down with a staple gun. pull the pad (either rip it up if it's junk, or if in good shape, just cut next to staples along perimeter, and along seems, and roll up. pad is cheap, annd easy to re-install. any carpet guy will stretch your piece of rug back in for you when you're done. or for 20 bucks buy a cheap kicker at harbor freight and put in back onto the strip your self, just bump it with the kicker enough to hook the carpet onto the spikes when reinstalling.
videos on this should be plentiful. super easy.