Keep in mind that this problem can also be caused by a generic bug introduced by the MS Installer on macOS. If you have a different one active, you will need to switch to the default profile in order to fix the EXC_BAD_INSTRUCTION ( Method 5).

Note: All the methods above assume that you are using the default (‘login’) keychain. If that doesn’t work, remove all Office related keychains with a series of terminal commands. In case you’re not afraid to get technical, delete the login keychain belonging to the affected program and try again. If you’re using a tool like this, disable it or uninstall it to get the issue resolved. If you’re encountering this issue, the first thing you should try is to update the Office application to the latest version or to trash it altogether and reinstall it once again.īut keep in mind that Office apps are notoriously known to conflict with VPNs on macOS. EXC_BAD_INSTRUCTION when opening Word on Mac In most cases, this error is reported to occur after a macOS software update. The error message displayed is ‘Microsoft Word has encountered a problem and needs to close’ – upon clicking on More Information, affected users discovered the EXC_BAD_INSTRUCTION error code. Some users are experiencing systematic crashes every time they try to open Word or Outlook on their macOS computer.

Outlook crashes when opening