Mac 
If you can’t sign in with two-step verification using your Apple ID
Learn what to do if you have two-step verification turned on for your Apple ID and can’t sign in.
How to export Users and Groups with dsexport
You can use the Terminal command “dsexport” to save a file of your users or groups in OS X that you can later re-import if needed.
If your NetBoot clients can’t start up from the server
Try these steps if NetBoot services appear to be available on your server, but some client computers can’t start up from it.
If Safari doesn’t load a page or webpage items are missing
Check Safari extensions, or try removing cookies, cache, and other website data if a webpage or site doesn’t load on your Mac.
Oubli du mot de passe de votre programme interne
Consultez cet article pour savoir comment procéder si vous avez oublié le mot de passe de programme interne défini sur votre Mac, ou si vous ne pouvez pas sélectionner de volume de démarrage sans qu’un mot de passe vous soit … Continue reading
Intel 기반 Mac에 통합된 비디오에 관하여
Intel 기반 Apple 컴퓨터에서 사용할 수 있는 통합형 GPU가 무엇이고 이러한 GPU가 공유하는 시스템 메모리 용량은 어떻게 되는지 자세히 알아봅니다.
펌웨어 암호를 분실했거나 잊어 버린 경우
Mac에서 설정한 펌웨어 암호가 기억나지 않을 경우 수행할 작업에 대해 알아봅니다. 또한 시동 볼륨을 선택하려고 할 때 암호가 사라지지 않을 경우 수행할 작업에 대해서도 알아봅니다.
Advanced iTunes Store troubleshooting
This article will guide you through advanced troubleshooting for iTunes Store connectivity.
Can’t connect to the iTunes Store
Learn what to do if you can’t connect to the iTunes store on your computer or your iPhone, iPad, or iPod touch.
Postmaster information for iCloud Mail
This article is for system administrators who manage mail servers that send email to iCloud Mail.
