Update: As of Mac OS X 10.11 El Capitan, the Disk Utility in Mac OS X no longer includes a way to repair Disk Permissions. This is no longer necessary thanks to System Integrity Protection. What Are Permissions, and What Does Repairing Them Do?
macOS Recovery is part of the built-in recovery system of your Mac. You can start up from macOS Recovery and use its utilities to recover from certain software issues or take other actions on your Mac.
- Repair Operating System: If you are to repair iOS 12 iPhone X/8/7 operating system, use Repair Operating System would be enough. The most amazing feature is that it could download matching firmware for your device so as to repair iPhone operating system.
- Review 4 Best iOS Repair Tools for Mac/PC 2020 iOS, formerly known as iPhone OS, is a mobile operating system created and developed by Apple Inc. Exclusively for.
![Tools Tools](/uploads/1/2/6/5/126558666/359272993.gif)
How to start up from macOS Recovery
- Turn on your Mac and immediately press and hold these two keys: Command (⌘) and R. Need help?
- Release the keys when you see an Apple logo, spinning globe, or other startup screen.
- You might be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested password to continue.
- Startup is complete when you see the utilities window:
- After starting up from macOS Recovery, select a utility, then click Continue:
- Restore From Time Machine Backup:Restore your Mac from a Time Machine backup.
- Reinstall macOS: Download and reinstall the Mac operating system.
- Get Help Online: Use Safari to browse the web and find help for your Mac. Links to Apple's support website are included. Browser plug-ins and extensions are disabled.
- Disk Utility: Use Disk Utility to repair your disk or erase your disk or other storage device.
Additional utilities are available from the Utilities menu in the menu bar: Startup Security Utility (or Firmware Password Utility), Network Utility, and Terminal.
- To quit macOS Recovery, choose Restart or Shut Down from the Apple menu . If you want to choose a different startup disk before quitting, choose Startup Disk from the Apple menu.
If you can't start up from macOS Recovery
If your Mac can't start up from its built-in macOS Recovery system, it might try to start up from macOS Recovery over the Internet. When that happens, you see a spinning globe instead of an Apple logo during startup:
To manually start up from Internet Recovery, press and hold either of these key combinations at startup:
- Option-Command-R
- Shift-Option-Command-R
Learn more
If startup from Internet Recovery is unsuccessful, you see a globe with an alert symbol (exclamation point):
In that case, try these solutions:
- Make sure that your Mac can connect to the Internet. If you're not prompted to choose a Wi-Fi network during startup, move your pointer to the top of the screen, then choose a network from the Wi-Fi menu , if available.
- Press Command-R at startup to try using the built-in Recovery system instead of Internet Recovery.
- Connect to the Internet using Ethernet instead of Wi-Fi, or vice versa.
- Connect to the Internet from a different Wi-Fi or Ethernet network. Your network configuration might not allow the Internet access that macOS Recovery needs.
- Try again later, because the issue might be temporary.
- Start up from another disk or volume, if available, or use a bootable installer to reinstall macOS.
Repair Tools For Os X 8
If you still need help, please contact Apple Support.
- Updated on 2019-11-01 to iPhone | How to Articles
Is your iPhone running into a number of problems because of iOS 12/11/10 system issues? You are not alone. A lot of iOS user are panic over operating system issues like iPhone stuck, black screen of death, iOS system corruption, iPhone data loss, and so on. I've picked up three of the best iPhone system repair software which would save you out of most iPhone system issues.
Any iPhone System Repair
iPhone System Repair is a free tool which can fix many iOS device recovery mode loop errors with a single click.This iPhone system repair tool comes with both Windows and Mac version.
It aims to help you in the following situations:
- iPhone stuck on Apple logo.
- iPhone Won't turn on.
- iPhone stuck on recovery mode/red iTunes logo.
- iPhone stuck on reboot loop.
- iPhone won't start after jailbreaking.
- iPhone stuck on connect to iTunes status.
The software is super easy to use. No special skill is required. Essentially you just connect the iOS device to your computer, wait for it to be detected, and either click 'Enter Recovery Mode' and then 'Exit Recovery Mode' to reboot stuck device.
Guide: How to Repair iPhone System
Run this iPhone system recovery software and connect your device to computer with Apple lightning cable. Choose 'Repair Operating System' from the main screen.
Windows Os Tools
Follow the online screen guide, you need to download firmware file first.
When the firwmare file is downloaded successfully, you can click 'Start Repair' to repair iPhone system.
Video guide of repairing iPhone system without data loss.
UltFone iOS Data Manager
UltFone iOS Data Manager is the upgrade version of UltFone iOS System Repair. Besides Repair Operating System, it has more outstanding functions: iPhone file management, transfer files to/from computer, free Backup & Restore, Fix iOS Stuck and Ads Remove. You can fully control your device and transfer your own files, clean-up your iPhone storage, fix and repair iOS or even backup and restore your data without having to go through iTunes first.
Repair Operating System: If you are to repair iOS 12 iPhone X/8/7 operating system, use Repair Operating System would be enough. The most amazing feature is that it could download matching firmware for your device so as to repair iPhone operating system.
You may also interest in:
UltFone iOS Data Recovery
Some iPhone system issues would cause iPhone data loss. That's when Any iOS Data Recvoery comes in handy. It's a light and well-designed iPhone system repair app. The most important part is that it allows to restore lost data directly from iPhone. Even those without backups can retrieve their precious iPhone data with help from iOS Data Recovery.
A glance of main features are below:
- Recover data from iOS devices/iCloud backup/iTunes backup;
- Be able to recover messages, contacts, photos, videos, notes, call history, calendars,voicemail,voice memos, reminders, bookmarks, etc;
- Recover App data like WhatsApp, Instagram, Flickr, iPhoto, iMovie, etc;
- Compatible with the latest iOS 13/12/11;
- Supports iPhone 11/11 Pro/XR/XS/X/8/8 Plus/7/6/6S/SE/5s/5c and lower.
Once you've sorted out iPhone system repair all the three iPhone system repair tools, you'll know when which one to use in different situations. Should you have any problems with iPhone operating system repair? Let us know by leaving a comment.
Os Tools For Windows 10
Fix 50+ iOS System Issues without Data Loss
Repair Tools For Os X Download
- 1-click to enter/exit iOS Recovery Mode free
- Repair iOS system problems and update/restore erros effectively.
- Factory reset iPhone without passcode.
- Support iPhone 11/11 Pro/XR/XS/X and iOS 13/12/11/10