I was trying to install Windows 7 using Parallels Desktop 8, but the install crashed...I have tried to uninstall Parallels, then reinstall, but it keeps going to the fail point during the install. I did a time machine backup prior to the install. So, how can I go back to that backup and put my rMBP back to that time? I do backups all the time, but haven't a clue how to restore using time machine. Please help. Thanks.