Can my Mac Mini Mavericks run
macOS Reinstall a Mac
If you're using macOS - that is, you have a MacBook, Mac Mini, or iMac - you've probably never looked at reinstallation before. Why also? The system runs and runs and ... doesn't it seem somehow slow and sluggish to you? And do some programs or apps keep crashing without you knowing why? Does it start super slow and take forever to do the simplest of tasks? Well, then we have to confront you with the truth: Macs also litter with time. Of course, if you have a good idea, you can remove the decelerating garbage yourself. But it is much easier to simply reinstall the Mac once. It's relatively easy - if you know how to do it.
1. Create a backup
Before doing anything that has to do with "reinstallation", make sure that you have backed up all of your data. If you haven't already, now is the time. You can find detailed and illustrated instructions for creating a backup with Time Machine here.
- The best thing to do is to include one empty USB hard drive to your Mac.
- Then start under "Programs"The tool"System settings". Here you will find the setting "Time Machine“.
- Click on "Select backup volume" and indicate the USB hard drive. The Time Machine backup then starts, which can take a few hours depending on the amount of your data.
Note: Basically you should Always keep Time Machine running: The tool regularly backs up all changed data. In case your Mac breaks or is stolen, you always have a backup close at hand. Then, eject the external hard drive and disconnect it from your Mac for safety.
Alternatively or additionally, you can also make a manual backup: Simply copy the contents of your user folder (under / Users /) to an external hard drive, a large USB stick, a NAS or the cloud. However, the Time Machine variant is simpler and safer. Then, eject the external hard drive and disconnect it from your Mac for safety.
2. See if you have everythingdisplay
Next, make sure you have all of the software you will need on a regular basis. Basically they are Installation media and serial numbers, for programs such as Microsoft Office or Photoshop. Otherwise you will not be able to reinstall these programs. You can, of course, easily download what you have downloaded from the iTunes or App Store. Only when you are sure that you have all the data, programs, and serial numbers to hand can you begin the actual Mac reinstallation.
3. Important: Deactivate "Find my Mac"
Last but not least, you have to Deactivate "Find my Mac":
- To do this, go to the System settings and choose here "iCloud“.
- On the right you will find a list of iCloud services, at the bottom is "Find my Mac". There must be no tick here, if there is, you have to remove it.
- Also, be sure to do this for safety sign out of iCloudby clicking on "Sign out“Click.
- The iCloud asks you if you want to keep local copies, but it doesn't matter because you are reinstalling the computer anyway. So choose "Keep a copy“- it's faster that way.
1. Shut down your Mac and start it in recovery mode
When you are absolutely sure that everything is backed up on external data storage, you can start with the actual macOS reinstallation:
To do this, restart the Mac once and keep the Key combination (cmd) + (R) pressed. On older Macs there is a gong that requires you to press the combination at the latest, on newer Macs you should switch the Mac off, then switch it on and then directly hold down (cmd) + (R). This will start the Mac in what is known as the macOS recovery, the recovery system for macOS. The start usually takes a little longer than the normal system start.display
2. Erase Mac system hard drive
Since the recovery system is on a second partition - this is something like an additional hard drive on your system drive - you can now delete the Mac system from here.
- To do this, click on "Disk utility"And then on"Continue“.
- Select your system hard drive here (usually "Macintosh HD", If you have not changed this) and click on"Clear". You can keep the name and format. Danger: There is now no more warning!
- Click again on "Clear“To remove everything from your Mac hard drive.
- You can then exit Disk Utility by pressing click on the red point.
3. Reinstall macOS
- You are now back in the main Recovery window. Select here “mReinstall acOS"And click on"Continue“.
- Now the actual reinstallation starts. Click again on "Continue", Accept the software license by clicking on"Accept"And then confirm again with"Accept“.
- The installer then shows the system drive. Click on it and choose "To install". The reinstallation will now be carried out.
4. Set up macOS
The installation can now take a while. Have a coffee or watch an episode of your favorite series on Netflix. Make sure your Macbook connected to power adapter and power during installation is so that there are no problems on the way. Then it is time to wait. The Mac may restart several times.
Then the macOS setup dialog, in which you first select your country (Germany), the Keyboard layout (German) confirm and then the WiFi password enter.display
5. Restore the backup
A dialog now follows asking you whether you want to read back a backup. If you have made a Time Machine backup, select "From a Mac, Time Machine backup, or startup disk". Then click on "Continue". Otherwise select "No information transferred now“.
If you have chosen the transfer, you can now use the Plug the backup hard drive into your Macand select. Then the reading back of the files and all apps begins, so that the Mac is then as it was before - albeit with a completely fresh basic system. The restore process can take a long time.display
6. Sign in to iCloud and finish the installation
Finally, macOS will ask for your iCloud credentials:
- Give your Apple ID and the associated password a.
- Then you have to re-enter the Tick the terms and conditionsby clicking twice on "Accept“Click.
- Finally, insert one more User account with password at. Select "Save files from "Documents" and "Desktop" in iCloud Drive"And click on"Continue“.
- You should disable FileVault first, you can set it up later or it will take too long. The rest is done automatically: Your Mac is now reinstalled and ready for use, any damage to the base system has been eliminated.
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