When folders or files showed greyed out on Mac, you cannot open it nor access the saved file. To resolve this issue, you may need to use Terminal on Mac for help. Follow the two phrases provided on this page, you will effectively fix folders and files greyed out issue on Mac with ease:

Why my folders and files greyed out on Mac?

Launch the RemotePC application and login. On the RemotePC home screen, click 'Configure Now!' Set 'Computer Name' and 'Personal Key' for your computer. Note: As Personal Key is optional for Enterprise users, they will not be asked to assign a key while configuring a computer for the first time. If the other account is logged in (possible if you have 'fast user switching' enabled), you will not be able to make any changes to that account from System Preferences, even as administrator. To reset their password, they cannot be logged in. If you can't log that user out, you can restart the computer to force it to be logged out.

'I managed to transfer some photos and videos from an old Seagate external hard drive to my Mac, but they all grayed out and couldn't be accessed! By the way, the grayed out folders and files reported an error 24 January 1984. Did it mean those files were created on that date? That's ridiculous. How could I fix grayed out folders or files on Mac without data loss and damage?'

When Mac folders or files greyed out and were inaccessible, your Mac could detect the error and set the date the Macintosh was first introduced, January 24, 1984. Many factors can cause this problem, like a fault in the file system entry for the file, or Mac hard drive formatting, interruption in the file or folder copying process, power failure, Mac OS crash, and more. Whatever the reason is, the result is the files or folders greyed out; you cannot open the folder.

How to Fix Mac Folders Grayed out in Terminal

Changing the date of the folder or file is a feasible way to fix greyed out folder on Mac. You can make it with the help of XCode (download XCode from the App Store).

Step 1. Open Finder and find the grayed out folder or file that shows 24 January 1984 error.

Step 2. Go to Applications and open the Terminal app.

Step 3. Type SetFile -d 11/09/2016 /Path/to/grayed-out-folder/ and tap on return.

By running the command, the date of your grayed out files or folders will change to 11/09/2016. Or you can set the time to any day as you wish. Now, you should see the greyed out folder turns to normal black.

A similar topic you may be interested in: How to fix photos half grayed out.

How to Recover Folders/Files with Free Mac Data Recovery Tool

Congratulations if you have solved the grayed out folders issue by following the instructions listed above. While if the problem keeps unsettled and is related to Mac hard drive formatting, operation errors, or system failure, you’d better directly recover the greyed out folders or files by using free data recovery software for Mac.

EaseUS Data Recovery Wizard for Mac is such a free tool that allows you to recover lost or deleted files, photos, audio, music, emails from Mac hard drive effectively and safely. It supports data recovery from Mac trash bin, hard drive, memory card, flash drive, digital camera and camcorders due to deletion, formatting, lost partition, virus attack, system crash, and more.

Step 1. Select the disk location (it can be an internal HDD/SSD or a removable storage device) where you lost data and files. Click the 'Scan' button.

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Step 2. EaseUS Data Recovery Wizard for Mac will immediately scan your selected disk volume and display the scanning results on the left pane.

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Step 3. In the scan results, select the file(s) and click the 'Recover Now' button to have them back.