To use any of these key combinations, press and hold the keys immediately after pressing the power button to turn on your Mac, or after your Mac begins to restart. Keep holding until the described behavior occurs.
- Command (⌘)-R: Start up from the built-in macOS Recovery system. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the Internet. macOS Recovery installs different versions of macOS, depending on the key combination you use while starting up. If your Mac is using a firmware password, you're prompted to enter the password.
- Option (⌥) or Alt: Start up to Startup Manager, which allows you to choose other available startup disks or volumes. If your Mac is using a firmware password, you're prompted to enter the password.
- Option-Command-P-R:Reset NVRAM or PRAM. If your Mac is using a firmware password, it ignores this key combination or starts up from macOS Recovery.
- Shift (⇧): Start up in safe mode. Disabled when using a firmware password.
- D: Start up to the Apple Diagnostics utility. Or use Option-Dto start up to this utility over the Internet. Disabled when using a firmware password.
- N: Start up from a NetBoot server, if your Mac supports network startup volumes. To use the default boot image on the server, hold down Option-N instead. Disabled when using a firmware password.
- Command-S: Start up in single-user mode. Disabled in macOS Mojave or later, or when using a firmware password.
- T: Start up in target disk mode. Disabled when using a firmware password.
- Command-V: Start up in verbose mode. Disabled when using a firmware password.
- Eject (⏏) or F12 or mouse button or trackpad button: Eject removable media, such as an optical disc. Disabled when using a firmware password.
If a key combination doesn't work
If a key combination doesn't work at startup, one of these these solutions might help:
Mar 03, 2017 Disable Startup Apps on Mac Temporarily. If you want to disable startup apps in Mac temporarily, hold down the Shift button while restarting your Mac and leave it when the Apple logo appears. This puts your Mac into “Safe mode“, which temporarily disables all the third-party apps and can be particularly helpful in troubleshooting your Mac.
- Be sure to press and hold all keys in the combination together, not one at a time.
- Shut down your Mac. Then press the power button to turn on your Mac. Then press and hold the keys as your Mac starts up.
- Wait a few seconds before pressing the keys, to give your Mac more time to recognize the keyboard as it starts up. Some keyboards have a light that flashes briefly at startup, indicating that the keyboard is recognized and ready for use.
- If you're using a wireless keyboard, plug it into your Mac, if possible. Or use your built-in keyboard or a wired keyboard. If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac.
- If you're using Boot Camp to start up from Microsoft Windows, set Startup Disk preferences to start up from macOS instead. Then shut down or restart and try again.
Remember that some key combinations are disabled when your Mac is using a firmware password.
Learn more
- Learn what to do if your Mac doesn't turn on.
- Learn about Mac keyboard shortcuts that you can use after your Mac has started up.
Note
Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.
Symptoms
When you start Microsoft Word for Mac, or when you try to open a new document, you experience one of the following conditions:
The program closes unexpectedly.
Error message:
Note
This error message may also occur during usage of application such as saving a document.
Resolution
To resolve this problem, follow steps below.
Microsoft Word for Mac 2008 or Later
Step 1: Quit all applications
On the Apple menu, click Force Quit.
Select an application in the 'Force Quit Applications' window.
Click Force Quit.
Repeat the previous steps until all active applications.
Warning
When an application is force quit, any unsaved changes to open documents are not saved.
Step 2: Remove Preferences
Quit all Microsoft Office for Mac programs.
On the Go menu, click Home.
Open Library.
Note
The Library folder is hidden in MAC OS X Lion. To display this folder, hold down the OPTION key while you click the Go menu.
Open the Preferences folder.
Look for a file that is named com.microsoft.Word.plist.
If you locate the file, move it to the desktop. If you do not locate the file, the program is using the default preferences.
If you locate the file and move it to the desktop, start Word, and check whether the problem still occurs. If the problem still occurs, quit Microsoft Word, and restore the file to its original location. Then, go to the next step. If the problem seems to be resolved, you can move the com.microsoft.Word.plist file to the trash.
Quit all Microsoft Office for Mac programs.
On the Go menu, click Home.
Open Library.
Note
The Library folder is hidden in MAC OS X Lion. To display this folder, hold down the OPTION key while you click the Go menu.
Open the Preferences folder.
Open the Microsoft folder.
Locate the file that is named com.microsoft.Word.prefs.plist.
Move the file to the desktop.
Start Word, and check whether the problem still occurs. If the problem still occurs, quit Word, and restore the file to its original location. Then, go to the next step. If the problem seems to be resolved, you can move the com.microsoft.Word.prefs.plist file to the trash.
On the Go menu, click Home.
Open Library.
Note
The Library folder is hidden in MAC OS X Lion. To display this folder, hold down the OPTION key while you click the Go menu.
Open the Application Support folder.
Open the Microsoft folder.
Open the Office folder.
Open the User Templates folder.
Locate the file that is named Normal, and move the file to the desktop.
Start Word and check whether the problem still occurs. If the problem seems to be resolved, you can move the Normal file to the Trash. If the issue continues to occur, proceed to the next step.
If the issue continues to occur, go to the next step.
Step 3: Peform clean boot
For information how to clean start your Operating system (OS), see Microsoft Knowledge Base article:
2398596 How to use a 'clean startup' to determine whether background programs are interfering with Office for Mac
If the issue continues to occur in Safe mode, go to the next step.
Step 4: Remove and then reinstall Office
Safe Mode Launch Mac Apps For Pc
For information how to remove and then reinstall Office, see the following article:
If after removing and then reinstalling Office, the problem continues to occur, go to the next step.
Step 5: Use the 'Repair Disk Permissions' option
You can use the Repair Disk Permissions option to troubleshoot permissions problems in Mac OS X 10.2 or later versions. To use the Repair Disk Permissions option, follow these steps:
- On the Go menu, click Utilities.
- Start the Disk Utility program.
- Click the primary hard disk drive for your computer.
- Click the First Aid tab.
- Click Repair Disk Permissions.
Note
The Disk Utility program only repairs software that is installed by Apple. This utility also repairs folders, such as the Applications folder. However, this utility does not repair software that is in your home folder.
Microsoft Word 2004 for Mac
Quit all Microsoft Office for Mac programs.
On the Go menu, click Home.
Open Library.
Note
The Library folder is hidden in MAC OS X Lion. To display this folder, hold down the OPTION key while you click the Go menu.
Open the Preferences folder.
Look for a file that is named com.microsoft.Word.plist.
If you locate the file, move it to the desktop. If you do not locate the file, the program is using the default preferences.
If you locate the file and move it to the desktop, start Word, and check whether the problem still occurs. If the problem still occurs, quit Word, and restore the file to its original location. Then, go to the next step. If the problem seems to be resolved, you can move the com.microsoft.Word.plist file to the trash.
Qit all Microsoft Office for Mac programs.
On the Go menu, click Home.
Open Library.
Note
The Library folder is hidden in MAC OS X Lion. To display this folder, hold down the OPTION key while you click the Go menu.
Open the Preferences folder.
Open the Microsoft folder.
Look for a file that is named com.microsoft.Word.prefs.plist.
Move the file to the desktop.
Start Word, and check whether the problem still occurs. If the problem still occurs, quit Word, and restore the file to its original location. Then, go to the next step. If the problem seems to be resolved, you can move the com.microsoft.Word.prefs.plist file to the trash.
On the Go menu, click Home.
Open the Documents folder.
Open the Microsoft User Data folder.
Locate the file that is named Normal, and move the file to the desktop.
Start Word, and check whether the problem still occurs. If the problem seems to be resolved, you can move the Normal file to the trash.
Third-party disclaimer information
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The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.
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The information and the solution in this document represent the current view of Microsoft Corporation on these issues as of the date of publication. This solution is available through Microsoft or through a third-party provider. Microsoft does not specifically recommend any third-party provider or third-party solution that this article might describe. There might also be other third-party providers or third-party solutions that this article does not describe. Because Microsoft must respond to changing market conditions, this information should not be interpreted to be a commitment by Microsoft. Microsoft cannot guarantee or endorse the accuracy of any information or of any solution that is presented by Microsoft or by any mentioned third-party provider.