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macOS High Sierra 10.13 introduced a new security feature that requires manual user approval before loading new third-party kernel extensions.
System Extension Blocked A program tried to load new system extension(s) signed by 'LogMeIn, Inc.' On your Mac, open System Preferences by clicking the Apple icon. Click Allow next to System software from developer 'LogMeIn, Inc.' Was blocked from loading. May 27, 2020 Note: If using a different version of macOS, see the Latest OS Compatibility article. UAD v9.8 and higher software is tested and compatible with macOS High Sierra. With High Sierra, OS system security requires UAD software to be manually allowed for proper operation. Configuration steps that are unique to High Sierra are detailed in this article. Apr 27, 2020 You will also see a message indicating 'System Extension Blocked'. Enter your Mac User Name and Password and then Unlock the preferences; Click 'Allow' next to the message 'System software from developer 'Palo Alto Networks' was blocked from loading.'
User Approved Kernel Extension Loading
To improve security on the Mac, kernel extensions installed with or after the installation of macOS High Sierra require user consent in order to load. This is known as User Approved Kernel Extension Loading. Any user can approve a kernel extension, even if they don’t have administrator privileges.
A walk-through of the user approval process
When a user installs an application on a Mac (either from a local source or via Managed Software Center) which loads a third-party extension, the load request is denied and macOS presents the alert shown in Figure 1.
Figure 1 -- The 'System Extension Blocked' dialog which you would see if you have installed the GlobalProtect VPN application for the first time.
Click on the button labeled 'Open Security Preferences', which will take you to the Security & Privacy panel of Systems Preferences (as shown in Figure 2).
NOTE: If you click the 'OK' button instead, you have 30 minutes in which to navigate to the Security & Privacy System Preference before the Allow button disappears. You would then need to restart the Mac in order to approve the system extension(s).
Figure 2-- User approval to load the third-party extension. In this example, selecting 'Allow' will enable loading of kernel extensions from Palo Alto Networks, developers of the GlobalProtect VPN client.
Mac System Software From Developer Was Blocked From Loading
Click on the 'Allow' button to enable the kernel extension to load so that this application (and any other applications by the same developer) will function properly on the Mac. You will be prompted if a restart is required at this time.
Which applications require user approval?
Below is a short list of the third-party applications you would be most likely to encounter at WCER which may require manual approval:
• Box Drive (cloud storage and collaboration application)
• Cisco System's AMP for Endpoints Connector (antivirus and malware protection)
• Palo Alto Networks GlobalProtect (VPN client)
![Mac Mac](/uploads/1/2/6/2/126245790/744463292.jpg)
• VMWare Fusion (virtual machine application)
Mac System Software From Developer Was Blocked Iphone
PLEASE NOTE:If any of these applications were already installed when you received your Mac, then the Tech Services administrator would have already approved them so you should not be prompted for approval.