Apps, Operating Systems (Windows, MacOS, Linux), or pro level software.
Ray wants to know if you can dual boot a Windows machine with Apple OS X. Leo says no. You can go the other way around and boot up to Windows 10 using boot camp, but you can't make a Windows machine run OS X unless you do a "hackintosh" setup, which is a direct violation of Apple's terms of service. Plus, Apple won't sell you a copy of OS X without a computer.
Patrick has a Dell Inspiron Desktop and wants to know why his computer doesn't know what time or date it is. Leo says that means the CMOS battery on the motherboard is dead. Just replace it. It's about the size of a quarter.
Jim wants to create custom thumbnails of his graphics as he takes them off his old Windows 3.1 computer. Leo says that Irfanview is ideal for that and the old PC will work with that app. The other options are ACDSee and NeoFinder.
Jack's iMac runs El Capitan, and his iMovie and Garage Band have stopped working. He has been told he has to upgrade to get them working back. But he's hesitant. Leo says that it's OK and you should upgrade. Apple isn't like Windows. You can safely go to Mojave, or at least High Sierra. Why did your apps stop working? That's a puzzle. Maybe your graphics card is too old? Or Apple may have just broken the connectivity. Upgrading to Mojave though is important for security reasons.
John wants to know if Microsoft Office comes with Windows. Leo says it doesn't, but there's an open source option called Libre Office, which is free, and will do most of what MS Office does, including reading all Office document files. Buying Office is very expensive, but he can do a monthly subscription rate, which is about $100 a year for Office Home. It's the most affordable solution.
Chuck is using Dragon Naturally Speaking on the Mac, but he just found out that Dragon is discontinuing support for Mac. What are his alternatives? Leo says that Windows and Mac both have voice recognition and dictation now, so it may be that they discontinued it because the market is drying up. Google is also doing this. Sadly, it won't have nearly as many voice features as Dragon did. One thing he could do is use the Windows version and dual boot his Mac as a Windows machine using BootCamp.
Katie edits her student's papers using Microsoft Word on a Mac, and now after a new update, the formatting is all screwed up in a Windows version of Word. Leo says that in theory, Office should be the same cross-platform. That's the point. But it's possible that typefaces may not be compatible in Windows that are in Mac, and vice versa. Her printer setup may also throw off the formatting. Office formats the document to look as it does on the printed page, and if she got a new printer, that could alter the format. So she should change it to a generic printer format.
John's mom recently passed away and had an old laptop. But when he turns it on, he gets an error "desktop not available." Leo says it's likely that the profile may have gotten corrupted, or is non-existent. Since she's been automatically logging in, that's where the error pops up. But there could be a hidden administrator account with permissions to take over all features. He can Google how to access that. Once he does, he should get the data out of it immediately. Then he should wipe the drive and start over.
Roy uses Google Drive and DropBox, but he's having issues with syncing folders to his other services. Leo says to check which folders are synced in the settings. He can also look at a third party service like ODrive. It will do all the syncing and will even merge all of his backup options except for Apple iCloud. He can also use a network attached storage device, which will also have a sync utility.
Steven keeps getting a message that he needs to reactivate Windows. He keeps putting the product number in, and he keeps getting told to reactivate. Leo says he shouldn't need to at all, since it's Windows 10. Once the computer is authorized, it never needs to be authorized again. But it sounds like Microsoft keeps track of location information, and since Steven moved, maybe it's confused and is deactivating it. He'll need to contact Microsoft to solve this one.