Hello! I'm new to the forum and am at a complete loss as to what to do. Last year, the hard drive on our macbook gave out, so we had that, along with the battery replaced and the RAM upgraded. Fortunately, we were able to keep all of our data and the repair guy set up time machine for us and we were able to back everything up on an external hard drive as well. Just last night, the mac wouldn't boot up past the gray screen with the apple symbol, just like it did last time the hard drive gave out. Only this time, the mac will shut itself down after a few minutes of trying to boot. Our main concern is data loss, and while in recovery mode, we tried to back up all the new data we hadn't yet. It kept showing an error message and saying it couldn't back anything up and I'm worried it may have overwritten or erased our previous backups. I'm also wondering if anyone else has had this problem and how they fixed it? Thank you in advance!