Disk Utility displays the Mount Point of every volume attached to your Mac. The forward slash is used to indicate the root or starting point of the Mac's hierarchical file system.
The startup drive is always the root or start of the file system in the Mac OS. In the Disk Utility Sidebar, select a volume , and then check the Mount Point listed in the volume information area in the bottom center of the window. If you see the forward slash symbol, that volume is being used as the startup drive.
Continue selecting volumes in the Disk Utility sidebar until you find the startup volume. Now that you know which volume is being used as the startup disk, you can return to the Startup Disk preference pane and set the correct volume as the startup disk. Safe Boot is a special startup method that forces your Mac to load only the minimum information it needs to run. Safe Boot also checks the startup drive for disk issues and attempts to repair any problems it encounters.
Give Safe Boot a try. Once your Mac has booted using Safe Boot, go ahead and restart your Mac to see if the original question mark issue has been resolved. It contains helpful guides to getting your Mac up and running. If you're still having startup issues, try starting from another device. Remember, Time Machine doesn't produce backups you can boot from. If you can start your Mac up from a different drive, you may need to repair or replace your original startup drive.
SOLVED: A flashing question mark in a folder - MacBook Air 13" Mid - iFixit
There are a number of apps that can repair minor disk problems, including Disk Utility's First Aid feature and Drive Genius. You can also use another special startup mode called Single User Mode to perform disk repair on the startup drive. Share Pin Email. Tom Nelson has written hundreds of articles, tutorials, and reviews for Other World Computing and About. Yesterday, after I turned on my MacBook Air, it displayed a flashing folder with a question mark.
Any clues on how to fix this? And while you deal with this problem, you may come across the possibilities of data loss due to corruption or inaccessible media. So, we also cover along data recovery solution for Mac hard drives. Flashing folder with a question mark? This can happen in the following situations:.
Case 1: When MacBook displays the error for a few seconds but boots. Case 2: When MacBook displays the error but does not boot.
Try repairing it with First Aid, as follow:. Step 4 : Exit Disk Utility once the repair process is over. Step 1: Back up the MacBook data [critical step]. This is critically important because if you reinstall the OS without first backing up the data, it will result in data loss due to overwriting.
Step I. Step III. Step IV.
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Launch the tool, and from the main interface, select Recover Data. Step V. Select the type of data and the location of the flashing question mark drive. Step VI.
How to fix a Mac that won't start
Click Scan after you turn on the Deep Scan feature for rigorous searching. Step VII. Click Recover , and on the dialog box, specify the save location and click Save. For quick walkthrough on how to use the software for MacBook data backup, see the following video:. Step 2: macOS Reinstallation.
mac white screen with question mark
After the data stored on the HD — having flashing question mark folder problem — is backed up, proceed with reinstalling macOS, as follows:. Note : When Disk Utility does not show the Startup Disk or cannot repair it, then the storage drive has hardware problems. Contact a Mac repair service provider in this scenario. The article elaborated various methods to repair flashing question mark folder screen on Mac.
The first case occurs when your Mac shows a flashing folder with a question mark for a few seconds.
In this case, you reselect the Startup Disk from system preferences. The second case happens when your Mac is stuck in the flashing folder with a question mark without booting. In this case, you need to enter the macOS recovery mode and reselect the Startup Disk.