How to Enable Write Permissions on Mac for DaVinci Resolve

DaVinci Resolve is one of the most powerful video editing and color grading tools available, but it's also one of the more demanding applications when it comes to file system access. On macOS, permission errors are among the most common reasons Resolve fails to save projects, write cache files, or access media. Understanding why this happens — and what controls it — is essential before you start clicking through settings.

Why DaVinci Resolve Needs Write Permissions on Mac

DaVinci Resolve doesn't just read your video files. It actively writes to disk constantly: cache files, optimized media, render outputs, project databases, and proxy files. If it can't write to the locations it needs, you'll see errors ranging from vague warnings to complete render failures.

macOS adds another layer on top of standard Unix file permissions: System Integrity Protection (SIP) and Privacy & Security controls introduced with macOS Mojave and expanded in later versions. These require apps to explicitly request access to protected folders like Desktop, Documents, Downloads, and external drives — even if you as the user own those files.

The Two Permission Layers You're Dealing With

1. macOS Privacy & Security (App-Level Access)

This is the most common culprit. macOS requires DaVinci Resolve to be granted explicit access to certain locations through System Settings (or System Preferences on older macOS versions).

To check and enable this:

1. Open System Settings → Privacy & Security → Files and Folders (or Full Disk Access on some macOS versions)
2. Scroll to find DaVinci Resolve in the list
3. Ensure it has access toggled on for the relevant locations — Documents, Desktop, external volumes, or network drives depending on where your media and project files live
4. If Full Disk Access is available, granting it gives Resolve unrestricted read/write access across the system

On macOS Ventura and Sonoma, the interface is under System Settings → Privacy & Security → Full Disk Access. On macOS Mojave through Monterey, it lives under System Preferences → Security & Privacy → Privacy → Full Disk Access.

If Resolve doesn't appear in the list, you may need to click the + button and navigate to the application manually (typically in /Applications/DaVinci Resolve/).

2. File and Folder Permissions (Unix-Level)

The second layer is standard macOS file permissions. Specific folders or drives — particularly external hard drives formatted as exFAT or NTFS — may not give Resolve write access at the file system level.

To check folder permissions:

1. Right-click the folder or drive in Finder → Get Info
2. Expand the Sharing & Permissions section at the bottom
3. Check that your user account shows Read & Write — not just Read
4. If you see a lock icon, click it, authenticate, and adjust accordingly

For your user's home directory and internal drive, macOS typically grants your own account full write access. Problems usually surface with:

• External drives (especially NTFS-formatted drives, which are read-only on Mac by default)
• Network-attached storage (NAS) with restrictive share permissions
• Folders created by other users or applications with restrictive ownership

🗂️ Common Write Permission Issues in DaVinci Resolve on Mac

Configuring DaVinci Resolve's Cache and Media Storage Paths

Within Resolve itself, you can control where it tries to write. This matters because if the default cache location is a protected or restricted path, you'll hit errors even after adjusting system permissions.

In Resolve, go to DaVinci Resolve → Preferences → Media Storage. Here you can:

• Set which drives Resolve uses for cache, gallery stills, and optimized media
• Remove paths that Resolve doesn't have write access to
• Add a new path on a drive or folder where your account has confirmed write access

Setting a dedicated scratch disk — a drive or partition used exclusively for Resolve's working files — is a common practice among editors precisely because it sidesteps permission complications tied to system folders or shared network locations.

External Drives and NTFS: A Special Case

If your media lives on a Windows-formatted NTFS drive, macOS will mount it as read-only by default. Resolve can read your source files but cannot write cache, proxies, or renders to that drive. This is a file system limitation, not a Resolve bug.

Your options include:

• Reformatting the drive to exFAT (readable and writable on both Mac and Windows without extra software)
• Using a third-party NTFS driver to enable write access on Mac
• Moving your cache and output locations to a Mac-native volume while keeping source media on the NTFS drive

What Determines Whether These Steps Resolve Your Issue 🔧

The fix that works depends on where exactly in the workflow the permission failure is occurring, which macOS version you're running, how your media is organized, and whether you're working with internal storage, external drives, or networked storage.

An editor working entirely from an internal SSD in macOS Sonoma faces a different permission picture than someone pulling media from a NAS over SMB, or running Resolve on a shared workstation with multiple user accounts. The variables — OS version, storage type, drive format, folder location, and Resolve version — all interact differently depending on the specifics of your setup.

Getting write permissions working reliably in Resolve usually takes one or two targeted fixes once the right layer is identified. The challenge is accurately diagnosing which layer is the actual point of failure in your particular environment.