Apple recently declared that there are now nearly 100 million active Mac users. Sometimes in Windows, Mac OS, or anything other operating system’s problems can be fixed by reinstalling. If you need to sell or give away your old mac or modify your Mac you should reinstall the OS. Many computer users do it regularly. This will clean up and speed up the machine and clear all unwanted programs. This process consumes time. When you have malfunctions in the operating system you must upgrade or reinstall the OS. Let’s look at how to reinstall the Mac operating system on your Mac.
Reinstalling from Mac OS recovery
Mac OS recovery makes it easy to reinstall the Mac operating system. All you need is an Internet connection. Even in the Wi-Fi menu, you can select Mac OS recovery.
- First of all turn on your Mac
- Start-up from the Mac OS recovery immediately press and hold one of the following set of keys on the keyboard the keys are;
- Command (⌘)-R
Release the keys when the Apple logo, spinning globe, or another start-up screen appears. Option A one will reinstall the latest Mac OS which was installed on your Mac this option is the most common one. Option B will upgrade the latest Mac which is compatible. If you need to reinstall them closest version still available go for option C.
After that, the new window will be prompted to enter a password. This password is a firmware password or the password of a user or administrator of this Mac. Enter the relevant password to continue the process. Then you will be given the options list off Mac OS utilities. From the list, you have to click on the reinstall Mac OS option.
Decide if you need to free your disc
If you are giving away the mac ensure that you must erase personal data and restore it to factory settings. In those cases don’t just delete your information. Backup them into an external device for future use. If you just need to clean up your machine and give it to a fresh start, you won’t probably need to erase your data from your disc. After deleting the data before installing Mac OS select utility from the utility window. Next click on ‘continue’.
Installing the operating system
Now you are ready to install Mac OS. Firstly select it to reinstall Mac OS option from the utility window then click continue. You have to follow the onscreen instructions that are given. Choose a specific disc on which to install.
- Firstly You must unlock your disc with the relevant password you normally use to log into a Mac if it’s requesting.
- If it is unable to see your disc or if it is saying ‘That it can’t install on your computer or volume you need to erase your entire disc first.
- Sometimes the installer is mentioning 4 different versions of Mac OS than you expected you will need Mac OS recovery exceptions.
- you need to choose between installing on Macintosh HD or Macintosh HD data choose Macintosh HD if it’s asking.
When the installation process is happening you have to make sure that the computer will not put to sleep also avoid closing its lid. During the period your Mac might restart and appear a progress bar. After the Mac restarts to set up assistant you have to give your own formation and complete the setup.
If you are giving away your Mac press Command + Q to stop the setup assistant and avoid completing setup. After that shutdown it. Now the new buyer can input their own information to complete set up.