I am a bored student on vacation (first world problem I know) and I was thinking of using the time I got to reset my late 2012 RMBP to factory because I think doing a clean install wouldn't be a bad idea after all these years. I got a time machine backup in case anything goes wrong btw. I am already running the latest Yosemite so I guess I could just reboot cmd + r and format my start volume to journal and than use Internet recovery to reinstall Yosemite correct? now I was wondering, do I have to disable File Vault first. will it cause any problems formatting etc?