Is your 360 dawdling along like a gin-addled pensioner? It's possible its hard drive is full up with junk files from old games and downloads - a spring clean could work wonders. There's a hidden function to clear out the cache, though be warned it'll delete any game patches too, so you'll probably have to redownload a few. Head to the System blade, select memory, HD, then press Y. Next, hit X, X, Left Bumper, Right Bumper, X and X. You should get a message about maintenance. Don't expect miracles, but if a game's been slowing down mysteriously lately, this could cure it, plus free up some extra space on your HD.
alguem já fez isto ? eu não consigo, faço a sequencia mas não acontece nada