If you're seeking to quit an installation of an app or software you should see an option to cancel, or be able to click the red circle with an X in the installation window to close, and quit the installation of that app.Select your startup disk, then press and hold the Shift key while clicking 'Continue in Safe Mode.' Log in to your Mac. Turn on your Mac and continue to press and hold the power button until you see the startup options window. This can isolate possible third party issues.Shut down your Mac. Starting in safe mode allows your Mac to run certain checks, remove caches, and prevent login items from automatically launching. Communications issues for updates to definitions and policies To ensure the client is communicating and is managed properly by the endpoint servers:We recommend that you force the Mac to turn off and see if you can quit the installation in safe mode.

If a scan is in progress, you should be presented with an option to postpone or cancel it. To stop an active scanning process: Go to Applications -> Symantec Solutions -> Symantec Endpoint Protection. Restart your computer and reinstall the Microsoft Office. After the downloading is done, follow the on-screen instructions to remove Microsoft Office. First, go to this link to download a tool.

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