Every few days, I see a message floating above the desktop asking if I want to sync something on my MacBook or Mac Pro. It may be something in the keychain, such as login information, or a preference in Mail or another Apple program.
That seems well and good, and I’m glad to know the feature, [...]

It’s very easy to sell a Mac to the skeptic when things function normally, and to be frank, they usually do. Indeed, I’ve also done pretty well in making that occasional deal to sell my old hardware to a local buyer.
However, on a rare occasion things don’t always work predictably. Some years back, for example, [...]