However, I do not have the installation disk. So the question question remains as is the title: How do I format my Mac without the installation disk? Without the disk there is no way to reinstall. Maybe apple can get you a replacement or you can take it to the genuis bar. Create a new user account in System Preferences. But if that account is faster, you have too much crap in your user profile. Safari also doesn't like lots of bookmarks, for example. Not that it answers the questions directly, but I had slowdowns with my MacBook Pro, and it turned out the be the hard drive.
I downloaded SmartUtility on the recommendation of Spiff's answer in superuser. To more properly remova all user data, I would follow the instructions described here : Boot into single user mode. Hold Command-s at startup. For Mac OS X up to AppleSetupDone All done?
Naoise Golden Naoise Golden 5 5 bronze badges. I have been able to get replacement disks for machines as early as G4 Macs. Jerry Sweeton Jerry Sweeton 1 1 silver badge 8 8 bronze badges. NReilingh 5, 2 2 gold badges 21 21 silver badges 46 46 bronze badges. Yes please. I would like to know more! Fixed the code tag after an ordered list you need 8 spaces. The OOBE won't change anything on the hard drive except creating a new user account, which you can easily do in System Preferences. It is neat if you're selling your computer or something.
When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. In Mac OS X Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility. Click the Erase tab. Step 4: After the scan, the deleted files after fixing "Disk Utility can't repair disk" error will be found. In the left Path section, unfold each folder to search for needed files. To put it simply, it is not easy to find needed files by unfolding each folder in Path list if there are many folders.
Take it easy! MiniTool Mac Data Recovery offers you three useful options so as to find your needed data. This option lists all the found files according to file types. It is recommended to save the recovered files on another hard drive rather than the original drive to avoid data overwriting. Within simple steps, MiniTool Mac Data Recovery helps you to recover lost files from the formatted drive.
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If you encounter "Disk Utility can't repair this disk" error message and format the target drive but forget to back up the crucial files, just get this software to get lost data back. Share it with others now! Click to tweet. This post offers you the corresponding solution in two cases - Disk Utility stopped repairing Macintosh HD and Disk Utility can't repair external drive. Just do as the above paragraphs show. Besides, if you lost some important files when fixing the issue, try to recover them with MiniTool Mac Data Recovery. Solve It Now!
Format mac hd in single user mode. - Apple Community
Quick Navigation : Help! Tip: Time Machine backs up everything by default. If you want to only back up certain folders, please click Options button to make the setting. Tip: When "Disk Utility can't repair this disk" error message occurs due to the damaged hard drive, perhaps the backup with Time Machine cannot be completed. Just click the forum from Apple to learn more information.
Just click Settings option to enter the following interface where you can let this software only scan partitions with certain file system as well as some file types. This will be a method to save scan time. If the selected items reach the limitation, you should upgrade this software.
Then, use the license of the advanced edition to register the Demo Edition in the scan result interface to avoid a scan again. Scroll down for the next article Scroll down. It's fully compatible with macOS Mojave You can still recover data from the unmounted Mac internal hard drive with the help of iBoysoft Mac Data Recovery. This program will start scanning for lost files on the drive. Step 5: Preview the scanning results, and choose the files you want to get back. Step 6: Click the "Recover" button.
You need to specify a different location to store the recovered files. If you fortunately have another healthy Mac computer, or you can borrow one from your friends, you can create a bootable drive and then recover data from it. Insert a USB drive into the healthy Mac, and choose it as the media to create a bootable drive on.
How Can I Repair My Hard Drive If My Mac Won't Start?
Click "Make bootable" button. The creation process will start immediately. Be patient as it could take a while. Note: This process will erase all data on the USB drive.
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So please be sure to make a backup if there're important files. When the process completed, you'll see a window showing the next steps to recover data. You can take a note, or take a photo with your phone, of the information.
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When everything is ready, click the "Close" button. Select iBoysoft Mac Data Recovery from the boot options. This program will launch when your Mac boots up.
Apart from internal hard drive data recovery, iBoysoft Mac Data Recovery also supports recovering data from external hard drives, USB flash drives, SD cards, memory cards, and Pen drives, etc. After recovering data from the unmountable Mac internal hard drive, you can now try to mount the Macintosh HD via the solutions as below. Most of the time, restarting the computer is a feasible way to solve some booting problems. So you can at first try to restart your Mac by holding down the Power button till the Mac turns off. Wait a moment and turn it on. Can the Mac internal hard drive be mounted now?