If you plug in a hard drive and can't get it to work, it may be that the drive isn't formatted properly for that operating system. For instance, if you plug in a drive that had been formatted with a Mac into a PC running Windows, it won't be readable. The same thing will happen with a drive that had been formatted using Linux.
With all of the apps available online, it can be difficult to distinguish the trustworthy developers from rogue developers. If you happen to download a malicious app, that is the most dangerous thing you can do because you're giving that rogue developer permission to install software to access your system. There are precautions you can take to make sure you only get trusted apps, however.
Bridget got her first Mac and she's stunned that the cost of the apps for the Mac are so much more expensive than the ones for her iPhone or iPad. Leo says that's true, and Mac users are willing to pay it too. Bridget needs something she can use to edit a Word document that won't cost an arm and a leg. She's seen a lot of negative reviews on Apple's Pages. Leo says he likes Pages, but it isn't Word, which is why it gets a lot of negative reviews. Most people only use about 5% of Word's features, though. Pages is the best tool to layout and edit a resume.
Jonathan's external Blu-ray burner for his laptop has just died. Are there any good external Blu-ray burners for Mac? Leo says that just about any Blu-ray burner would work, if he could find software to drive it. Apple doesn't sell one because they don't want to support Blu-Ray burners due to privacy issues.
Operating systems can sometimes be very vague when it comes to identifying used and free space on a computer. If you've ever seen the "other" category taking up a large percentage of space on your hard drive, then this should help clear that up.
Bill's Dashboard icon has disappeared from his old iMac. Leo says he can drag an icon out of the dock accidentally in the older versions of OS X. It's easy enough to put it back by going into the Applications Folder, and dragging it back into the Dock. It'll create an alias for it and set it back where it needs to be.
Leo says this is a common problem on the iPhone as well. There are some programs that will help him see what is using up his storage, and should tell him more than just "other." Leo recommends Disk Inventory X. It will show him a graphical display using big colored blocks, and he can click on the blocks to see what is using up that storage. Leo would guess this "other" storage could be temporary files. It could also be stuff he deleted, that hasn't been completely deleted yet.
Apple's latest operating system, Mac OS 10.11 "El Capitan" is now available. With any new operating system, if you rely on your computer for work, it's always best to wait to ensure that it will work for everything you need. A good rule of thumb is to wait until the second update after the release.
Michael wants to add a few additional monitors to his Mac Pro but the HDMI connectors aren't working. Leo says it's odd that the HDMI can't be used in conjunction with the Thunderbolt connector, but that could be. He should check out this tech note from Apple.
Jay's Mac Mini is starting to crash every 4 hours. What can he do? Leo suspects overheating. It's pretty small, and they do get pretty hot. He could try opening it up, but he'll need a "spudger" to do that. He should probably take it in and talk to a genius.