How to fix “Unable to start Parallels services” issue on a Mac

Updating Parallels can lead to a broken Parallels installation and an error message "Unable to start Parallels services." Here's the fix.

December 1, 2020 4

The Mac Calculator: three calculators in one!

The Mac's Calculator app does more than basic math. It knows trigonometry, square roots, exponents, natural logs, scientific notation, etc.!

September 14, 2020 2

iCloud calendars not synching? Here’s a solution.

Here's how you can solve the "my Mac is not synching with iCloud" problem. If you see a spinner in Calendar that never stops, you need this.

August 22, 2020 0

How to find the settings you want in the Mac’s System Preferences

The Mac's System Preferences has zillions of settings. Here's how you find the one you want, using the built-in Search feature.

August 20, 2020 0

How to rearrange the order of menubar icons on a Mac

Here's how you rearrange the order of the icons in your Mac's menubar. Works for every modern version of the macOS.

January 15, 2020 0

How to install macOS Mojave or High Sierra or Sierra when Apple says your installer is damaged

Installing Sierra or High Sierra or Mojave on a Mac? Seeing a message that your installer is damaged? The message is wrong. Here's the fix.

November 14, 2019 2

Latest macOS version

The latest Mac OS is 10.15.4 (Catalina), released Tuesday, March 24th, 2020. A supplemental 10.15.4 update was released Wednesday, April 8th, 2020 addressing a FaceTime bug, an Office 365 sign-in bug, and a lot more. The supplemental update is highly recommended. (Remember that upgrading to Catalina from any other macOS is a big deal, and you should be sure that your apps are ready for it.) See this article for information about compatibility with 10.15.