Sometimes, your mailbox database does not visually reflect reality. If you have a situation like a deleted message still appearing in your Apple Mail account, you will probably see an error message. A database is a binary blob of information, so it may need to be updated via a rescan from time to time. In the Apple Mail app, select the particular mailbox in the sidebar, then choose "Mailbox" and "Rebuild" afterward. Your mailbox may appear empty until the attachments/messages are all downloaded back to your device.
Rodney doesn't understand Apple's product life cycle. Leo says that Apple's software is driven by its hardware. So when a new version of hardware comes out, sometimes older generations get left behind. It would be nice is Apple could let you know when the end of life is for its products, but since Apple makes both hardware and software, they don't have to do it.
Apple, for instance, has left behind 32-bit apps in macOS Mojave. So if software companies don't upgrade to 64-bit applications, those apps stop working on Macs using the new operating systems.
Just in case something goes wrong, make sure to back up your Mac Computer before committing to an OS update as Apple releases Big Sur in the near future.
1. Move your data to a new drive
2. Create a ghost user account in the internal hard drive
3. Create a copy of the home directory on the external drive.
Check out an in-depth Home Directory episode on Big Sur preparation by watching the latest Hands-on Mac, hosted by Leo! Twit.tv/hom30
Stan wants to know if he should wait until Big Sur or upgrade to macOS Catalina now? Leo says that you have to upgrade to Catalina first, since it eliminates all 32 bit apps. This will give you time to convert your other 32 bit apps to 64. It'll be pretty straight forward. But moving up to Big Sur may be more problematic because of how they approach kernel use. But you could wait and see what happens and stick with Mojave until Big Sur comes out and then see if you have to. Why do it twice if you don't really have to?
George is having issues converting his old VHS videotapes to digital. The old app that he's using, called the Elgato EyeTV isn't capturing the video. Leo says that the new eyetv company is now called Corsair and he says it's a good company. But there's likely no new driver for and old version of the software to support the latest macOS. Mac recently went to 64-bit only, dropping support for older 32-bit versions of the software. So you may need to buy the latest 64-bit version. But there should be a try before you buy option. So download it first and see.
Patrick has an old 2008 iMac and he's looking to repurpose it. He wants to install a new SSD, more RAM, and try and get it up to Catalina. Leo says it's possible, but he says that High Sierra is good enough. Leo says to watch the videos at iFixIt.com on how to upgrade on an iMac to see if he's up for it, because it's challenging, including removing the LCD screen to get to it.
Rebecca is a teacher who is struggling with keeping her students interest during distance learning. Leo says that dialogue is the most important part of teaching. That question and answer time, rather than just play another youtube video for them. They can do that.
LaVerne updated her 2012 Mac to Catalina and now it's going slow and she's getting kernel panic reports. Leo says it's likely a driver that is failing. It could also be a flakey hard drive. But when she logs into the guest account, it runs just fine. Leo says that indicates a bad profile. You can wipe the drive and start over, or create a new profile and then remove the other one.
Charles is noticing several of his recent photo files aren't as large as they should be on his Mac Mini. Leo says that if Charles is using Apple Photos for an App to store his photos, to r/c on the photos library, and then select Show Package Contents, he'll see photo folders, including the "originals" photo folder. That'll verify his originals are there.
John has a Fujitsu ScanSnap to scan business cards into his Mac. But a recent update doesn't support macOS anymore. Nor will it support the images that get scanned. Leo says it's probably because of 32-bit software that macOS doesn't support anymore. As such, many companies are dropping functions, rather than try and retrofit the software to work. According to the Chatroom, Fujitsu is making new software, they're just killing the old version.