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Fix the “LUFIER P1688B Printer Driver can’t be opened because it is from an unidentified developer” Error in Mac OS X

  8/17/2021 10:38:37 AM

Disable GateKeeper’s Unidentified App Developer Prevention Completely

This is generally best for advanced users who know what apps to trust and not to trust:

  1. Launch System Preferences from the Apple menu
  2. Choose “Security & Privacy” and then click the “General” tab, followed by clicking the lock icon in the corner to unlock the settings
  3. Look for “Allow applications downloaded from:” and choose “Anywhere” *
  4. Disable Gatekeeper blocking unidentified apps in Mac OS X Mountain Lion

  5. Accept the security warning and allow
  6. You can now launch any app from any location or developer




* Newer versions of macOS can allow apps from anywhere with these instructions if the option is not immediately available

This is the same in all versions of Mac OS X with Gatekeeper support, including MacOS Mojave, MacOS High Sierra, macOS Sierra, El Capitan, OS X Yosemite 10.10.x, OS X Mavericks, 10.9.x, and Mountain Lion 10.8.x, where the feature was first introduced.

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