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One or more drives is using APFS format

Some users will see a message in their FixMeStick scan that says that "One or more of your drives is using Apple's new APFS format. FixMeStick cannot currently read this drive, but is working on an automatic update to add support."


In these cases, the FixMeStick does not run a full scan, and instead moves through all six steps within seconds without scanning any files or finding any infections. 

What is APFS format? 

On September 25, 2017, Apple released its latest version of macOS (10.12.4) called High Sierra. When High Sierra is installed on an Apple computer with a solid state drive, this computer's file system is converted from HFS+ to APFS. A file system is the methods and data structures that an operating system uses to keep track of files on a disk or partition - i.e. the way the files are organized on the disk. Essentially, when you install High Sierra, the way that your files are stored and organized on your disk changes. This only applies to Apple computers with a solid state drive, and not those using a hard disk drive or a Fusion Drive. 

While our FixMeStick software was able to read file systems in the HFS+ format, it is currently unable to read those using APFS. Drives that have been converted to APFS format are structured in a way that the FixMeStick is not yet able to understand, and so therefore our software is unable to scan your files and quarantine any threats you may have on your computer. 

When can I use my FixMeStick on my Apple computer with High Sierra? 

FixMeStick is currently working on building support for solid state drives which have installed High Sierra and use APFS, and will automatically update itself to add compatibility in March 2018.

We recognize the inconvenience caused to our customers by not being able to use FixMeStick on these computers, and are offering compensation to customers affected by this issue.

To our Lifetime customers: You are eligible to receive an additional license for your Lifetime FixMeStick for Mac. 

To our non-Lifetime customers: Since your FixMeStick will be incompatible with your recently upgraded Mac we will compensate you for the time you've been unable to use your FixMeStick by increasing the length of your subscription by double the amount of time you've been impacted. For example, if you purchased a FixMeStick three months ago, you will receive six months added to your subscription.  

To redeem these offers, email us at Please include the serial number of your FixMeStick in your email, which is the code on the side of your FixMeStick that starts with 'FMS'. You can also call us at 1-888-530-6125 from 10 a.m. to 6 p.m. EST Monday to Saturday. 

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