Repairing LaunchServices database, rebuilding it from scratch, and controlling individual app entries – all using this undocumented command.
macOS
Sometimes macOS decides you want to open documents using the wrong version of the right app. Here’s how to fix that.
How can the Open Recent menu offer to open a document that no longer exists when the volume it was on is no longer mounted?
iOS 10.3, released on 27 March 2017, thrust the new file system on a great many unsuspecting users. Apple chose a high risk strategy. Has it paid off?
In Sierra but not Mojave, when the user opens an ancillary window, it appears for a moment, then vanishes. Is it a bug in the code, or in AppKit?
Should you install, re-install, or clean (re-)install macOS? Why, how to, and what they entail.
Have you lost any precious files lately? Old movies of your kids when they were young, perhaps. Wouldn’t it be good to be able to recover them?
That document is damaged and can’t be opened. But you think it’s got versions saved, if only you could get at them. How?
With apps in future set to come from the App Store or notarized by Apple, entitlements are going to be the rule not an exception.
What should you do with a Mac whose fans keeping coming on full blast, with high CPU loads from kernel_task, and sluggish performance?
The Eclectic Light Company 