Gatekeeper Installation Notes

Disabling OS X Gatekeeper to Install Syscomp Applications

Gatekeeper is a feature of the OS X operating system designed to prevent malware from being installed on your computer. It is included with OS X Mountain Lion and newer versions of OS X. The default settings for Gatekeeper only permit applications downloaded from the Mac App Store from being installed on your computer.

Gatekeeper falsely reports that Syscomp applications are "damaged and can't be opened".

Syscomp software is not distributed through the Mac App Store and requires Gatekeeper to be disabled during installation. Gatekeeper can be re-enabled after installation.

The instructions below are based on an article by the IT Services Department at the University of Chicago.

How to Disable Gatekeeper

1. Navigate to System Preferences in the Apple Menu.

2. Select the Security & Privacy icon under the Personal header.

3. In the Security & Privacy pane, click on the lock icon in the bottom-left corner.

4. Enter your username and password.

5. On the Security & Privacy pane, select the Anywhere radio button.  Note: if you are using OSX Sierra, refer to this note if the Anywhere option is not available.

6. Click Allow from Anywhere when prompted.

7. You can now open the Syscomp application DMG file and copy it into your Applications folder.

Re-Enabling Gatekeeper

After installing the Syscomp software, it is advisable to re-enable Gatekeeper.  Follow the instructions above and click on the radio button Mac App Store and identified developers on the Security & Privacy pane.