#Macos sierra recovery disk how to
#Macos sierra recovery disk mac os x

The above applies to the Mac OS X versions before El Capitan.

When running a disk repair procedure on your MacBook Air/Pro or iMac, repairing disk permissions is also a good idea.

#Macos sierra recovery disk how to

On the latest macOS versions, the Disk Utility will report something like your disk is OK or ‘ your disk has been repaired.’ If disk repair fails, the message will read ‘ The underlying task reported failure.’ How to Repair Mac Disk Permissions? The Disk Utility messages will read as one of the following: Note: running disk repair on a startup disk won’t work, so you will have to boot up from your installation disk or another drive. When disk repair is over, confirm if it has succeeded.Follow the messages that show up during the disk repair process.Open the First Aid tab -> press button Repair Disk to launch the disk repair process.Launch Disk Utility, then select Mac OS X startup disk in the left sidebar.Click the First Aid tab -> click the Run button.įollow these steps to fix corruption of the directory on your system's startup disk:.Go to Applications -> Utilities -> Disk Utility.However, on macOS Sierra/High Sierra, you can run a disk check for errors: If Mac OS X startup has failed, running risk repair is the best solution for bringing your computer back to life. It’s worth running periodic disk checks as a part of maintenance routine before installing the operating system and updates, software, or as a preventative measure. if your Mac loads the login screen but fails to load the Desktop.if your Mac boots up but freezes before making it to the login screen.if the message saying ‘ file system dirty, run fsck’ appears in the middle of Mac’s startup.if your Mac has a strange behavior after sustaining a power cut or a hard restart.

Perform a thorough disk check in case any of the below symptoms become evident: Fixing these errors is important to ensure your Mac’s smooth performance. If your machine has sustained improper shutdowns, unexpected power cuts or system crashes, it may experience the system errors or disk directory deprecation. So, why do you need to repair your Mac’s hard disk? Meanwhile, most users will launch Disk Utility if their computer won’t start properly. The Terminal-savvy Mac owners will choose in favor of the command-line fsck utility. Users of Mac OS X have two major utilities to verify and repair hard disks or their MacBook Air/Pro and iMac: Disk Utility and fsck.