Hi - because of not enough space on my hd, I have been unable to get updates, until yesterday, when I deleted Microsoft Windows Office for Mac. But I'm going to have to put it back soon. When we had an HP Pavilion Desktop, we had this Maxtor OneTouch 4 attached to it, so it's formatted for Windows. Can I change the formatting and not lose the stuff put on when using Windows? Prob not, right? So, I should get a new external drive? How do you decide whether to get an external drive or increase you hard drive? Thank you for your patience.
Depending on your MacBook you can get any 2.5" S-ATA HDD with a maximum height of 9.5mm (or 12.5mm with the Unibodies) to put it inside your MacBook.
Then you can get an external USB enclosure and use the old internal HDD as storage or backup.