Troubleshooting Guide: macOS Losing Fingerprint After Restart – How to Fix It

Have you ever experienced the frustration of your macOS device losing your fingerprint settings after a restart? This can be a common issue for some users, but fear not! In this blog article, we will explore the possible causes behind this problem and provide you with some effective solutions to fix it. So, let’s dive in and get your fingerprint authentication up and running seamlessly again!

1. Update macOS and Drivers:

The first step to resolving any software-related issue is to ensure that your macOS and drivers are up to date. Apple regularly releases system updates and patches that address bugs and improve performance. Check for updates by navigating to the Apple menu -> System Preferences -> Software Update. Additionally, make sure to update any third-party drivers or software related to your fingerprint scanner.

2. Re-Enroll Your Fingerprint:

If updating your macOS didn’t resolve the issue, the next step is to re-enroll your fingerprint. This process helps the system recognize your fingerprint more accurately. To do this, follow these steps:
– Go to System Preferences -> Touch ID.
– Remove your existing fingerprint(s) by selecting them and clicking on the “-” button.
– Clean your fingers and the fingerprint sensor to ensure there are no smudges or dirt particles.
– Click on the “+” button and follow the on-screen instructions to re-enroll your fingerprint.

3. Reset NVRAM and SMC:

Resetting the NVRAM (non-volatile random-access memory) and SMC (System Management Controller) can often resolve various hardware-related issues, including fingerprint authentication problems. Here’s how to do it:
– Shut down your Mac.
– Press and hold the Command (⌘), Option, P, and R keys simultaneously.
– Turn on your Mac and continue holding the keys until you hear the startup sound for the second time.
– Release the keys and let your Mac boot normally.

4. Check Security Settings:

Ensure that your security settings are correctly configured to allow fingerprint authentication. Sometimes, changes in settings or a recent update may have inadvertently disabled this feature. To verify this, go to System Preferences -> Security & Privacy -> Touch ID and ensure that the option to use your fingerprint for unlocking your Mac and authorizing App Store purchases is enabled.

5. Contact Apple Support:

If none of the above solutions work, it’s best to seek assistance from Apple Support. They have dedicated experts who can help diagnose the issue and provide specialized guidance based on your specific macOS version and hardware configuration.


Losing fingerprint authentication after a restart can be an annoyance, but with the right troubleshooting steps, you can easily resolve the issue. By updating your macOS, re-enrolling your fingerprint, resetting NVRAM and SMC, checking security settings, and reaching out to Apple Support if needed, you can regain the convenience and security of using your fingerprint to unlock your Mac. Remember, technology can sometimes have its quirks, but a little patience and knowledge go a long way in resolving such issues.

Leave a Reply