How to Use iCloud Drive and Desktop Sync on Mac

iCloud Drive is Apple's cloud storage service that syncs files across all your Apple devices — Mac, iPhone, iPad, and even Windows PCs via iCloud.com. When you save a file to iCloud Drive on your Mac, it's automatically available on your iPhone and iPad within seconds. macOS also lets you sync your entire Desktop and Documents folders to iCloud, so you can access your files from any device and free up local storage.

This guide covers everything you need to know about setting up and using iCloud Drive on Mac: enabling sync, understanding Desktop & Documents sync, managing storage, troubleshooting sync issues, and controlling which files stay local vs. cloud-only.

What Is iCloud Drive?

iCloud Drive is a cloud-based file storage and sync service built into macOS, iOS, and iPadOS. It works like Dropbox or Google Drive — you store files in the cloud, and they're accessible on all your devices.

Key features:

Cross-device sync — Files saved to iCloud Drive on your Mac appear on your iPhone, iPad, and iCloud.com instantly.
Automatic backup — Files in iCloud Drive are stored in the cloud, protecting them from hardware failure or accidental deletion.
Desktop and Documents sync — Optionally sync your entire Desktop and Documents folders to iCloud, so they're available on all Macs and via iCloud.com.
Optimized storage — macOS can store recent files locally and keep older files in iCloud-only, freeing up Mac storage automatically.
Collaboration — Share folders and files with others, with real-time sync for shared documents.

How much storage do you get?

Free tier: 5 GB (shared across iCloud Drive, iCloud Photos, iCloud Mail, and backups)
iCloud+ 50 GB: $0.99/month
iCloud+ 200 GB: $2.99/month
iCloud+ 2 TB: $9.99/month
iCloud+ 6 TB / 12 TB: $29.99/month / $59.99/month

If you use iCloud Photos or back up your iPhone, the free 5 GB fills up quickly. Most users need at least the 50 GB or 200 GB plan.

iCloud Drive vs. iCloud Photos vs. iCloud Backup

Apple has several iCloud features that sound similar but serve different purposes:

Feature	What It Does	Storage Location
iCloud Drive	Syncs files, folders, Desktop, and Documents across devices	Files are in iCloud and optionally on your Mac
iCloud Photos	Syncs your entire Photos library across devices	Photos are in iCloud; you can optimize storage on Mac
iCloud Backup	Backs up iPhone/iPad settings, app data, messages, and photos	iPhone/iPad only (not for Mac)
iCloud Mail	Email storage via iCloud.com	Webmail and Mail app sync

Important: This guide focuses on iCloud Drive — file and folder sync. For Photos sync, see System Settings > Apple ID > iCloud > Photos. For iPhone backups, use Finder or iCloud Backup on your iPhone.

How to Enable iCloud Drive on Mac

Before you can sync files, you need to enable iCloud Drive in System Settings.

Step 1: Click the Apple menu () > System Settings.

Step 2: Click Apple ID at the top of the left sidebar. (If not signed in, sign in with your Apple ID first.)

Step 3: Click iCloud.

Step 4: Scroll to iCloud Drive and toggle it on.

Step 5: A checkbox list appears showing apps that can store data in iCloud Drive (Pages, Keynote, Preview, etc.). Check or uncheck apps as desired.

Step 6: Click Done.

What happens next:

A new iCloud Drive section appears in Finder's sidebar.
Files you save to iCloud Drive (via Finder or apps) sync to iCloud and all your devices.
Apps like Pages, Numbers, and Keynote automatically save documents to iCloud Drive.

Enable Desktop and Documents Sync

One of iCloud Drive's most powerful features is Desktop and Documents folder sync. When enabled, everything on your Desktop and in your Documents folder is uploaded to iCloud and synced across all your Macs.

Benefits:

Access Desktop and Documents files on any Mac signed in with your Apple ID.
Files are backed up to iCloud automatically.
Free up Mac storage by letting macOS store older files in iCloud-only.

Step 1: Go to System Settings > Apple ID > iCloud.

Step 2: Click iCloud Drive.

Step 3: Toggle Desktop & Documents Folders on (or check the box next to it on older macOS versions).

Step 4: A confirmation dialog appears explaining that files will be uploaded to iCloud. Click Continue or Turn On.

Step 5: macOS begins uploading files from Desktop and Documents to iCloud. This can take minutes to hours depending on file size.

What this does:

All files on your Desktop and in Documents are moved to iCloud Drive > Desktop and iCloud Drive > Documents.
These folders now sync across all Macs with Desktop & Documents sync enabled.
On other Macs, your Desktop and Documents become the iCloud-synced versions (not local folders).

Warning: If you have large files (videos, disk images, project folders) on your Desktop or Documents, the upload can take hours and consume significant iCloud storage.

How Desktop and Documents Sync Works

When Desktop & Documents sync is enabled, macOS changes how these folders work:

Before enabling sync:

Desktop and Documents are local folders stored in /Users/YourName/Desktop and /Users/YourName/Documents.
Files are not backed up or synced (unless you use Time Machine or another backup solution).

After enabling sync:

Desktop and Documents are redirected to iCloud Drive > Desktop and iCloud Drive > Documents.
Files are uploaded to iCloud and synced to all Macs with Desktop & Documents sync enabled.
Files can be stored locally (downloaded) or cloud-only (small placeholder with a download icon).

On your iPhone and iPad:

Desktop and Documents folders appear in the Files app under iCloud Drive. You can view, edit, and add files from your phone, and they sync back to your Mac.

On iCloud.com:

Go to iCloud.com, sign in, and click iCloud Drive. You'll see Desktop and Documents folders and can upload/download files from any computer.

On other Macs:

If you sign in to another Mac and enable Desktop & Documents sync, that Mac's Desktop and Documents will replace its local folders with the iCloud versions. Any files previously on that Mac's Desktop/Documents will be moved to a folder called Desktop - [Old Mac Name] or Documents - [Old Mac Name] inside iCloud Drive.

Access iCloud Drive Files in Finder

Once iCloud Drive is enabled, accessing your files is simple.

Step 1: Open Finder.

Step 2: In the left sidebar, click iCloud Drive (under the iCloud section).

Step 3: You'll see:

Desktop — Contents of your Desktop (if Desktop & Documents sync is enabled)
Documents — Contents of your Documents folder
App folders (Pages, Keynote, Numbers, Preview, etc.) — Files saved by apps
Other folders — Any folders you've manually created in iCloud Drive

Step 4: You can drag files into iCloud Drive just like any other folder. Files you add here sync to all your devices.

Tip: You can create folders, rename files, and organize iCloud Drive just like a local drive. All changes sync across devices.

Optimize Mac Storage with iCloud Drive

If your Mac is low on storage, macOS can automatically keep older, less-used files in iCloud-only and download them on demand when you open them.

How to enable Optimize Mac Storage:

Step 1: Go to System Settings > Apple ID > iCloud > iCloud Drive.

Step 2: Toggle Optimize Mac Storage on.

Step 3: Click Done.

What this does:

macOS analyzes which files you haven't opened recently.
Older files are removed from your Mac but remain in iCloud.
A cloud icon with a down arrow appears next to cloud-only files in Finder.
When you double-click a cloud-only file, macOS downloads it automatically (requires internet).

How much space this saves:

If you have 100 GB of files in iCloud Drive but only use 20 GB regularly, macOS might keep only 20–30 GB on your Mac, freeing up 70–80 GB.

Checking if a file is downloaded:

Step 1: Open Finder and go to iCloud Drive.

Step 2: Look at the icons next to each file:

No icon — File is downloaded and stored locally.
Cloud with down arrow — File is cloud-only; click to download.
Dotted circle arrow — File is currently uploading or downloading.

Step 3: To download a cloud-only file, right-click it and select Download Now.

Download Files from iCloud to Your Mac

If Optimize Mac Storage is enabled, some files may be cloud-only. You can force macOS to download them.

Download a single file:

Step 1: Open Finder > iCloud Drive.

Step 2: Find the file with a cloud icon.

Step 3: Right-click the file and select Download Now (or double-click to open it, which downloads automatically).

Download an entire folder:

Step 1: Right-click the folder in iCloud Drive.

Step 2: Select Download Now.

Step 3: macOS downloads all files in the folder.

Keep a file downloaded permanently:

Step 1: Right-click the file or folder.

Step 2: Select Keep Downloaded (or Always Keep on This Mac on older macOS).

Step 3: macOS won't remove this file from your Mac, even if storage is low.

Remove Files from iCloud Drive

Deleting a file from iCloud Drive removes it from all your devices and iCloud.com. It's not a local-only delete.

Step 1: Open Finder > iCloud Drive.

Step 2: Select the file or folder you want to delete.

Step 3: Press Cmd+Delete or drag it to the Trash.

Step 4: Empty the Trash:

Right-click the Trash icon in the Dock.
Select Empty Trash.

Step 5: The file is permanently deleted from iCloud and all devices.

Alternative (from iCloud.com):

Step 1: Go to iCloud.com and sign in.

Step 2: Click iCloud Drive.

Step 3: Select files to delete and click the trash icon.

Step 4: Go to Recently Deleted and click Delete All to permanently remove files.

Warning: Files deleted from iCloud Drive are gone from all devices. Make a local backup before deleting important files.

Manage iCloud Storage Space

If you're running out of iCloud storage, you can see what's using space and delete large files or upgrade your plan.

Step 1: Go to System Settings > Apple ID > iCloud.

Step 2: At the top, you'll see a bar graph showing storage usage by category (iCloud Drive, Photos, Backups, Mail, etc.).

Step 3: Click Manage (or Manage Storage on older macOS).

Step 4: Review what's using space:

iCloud Drive — Files and folders
Photos — iCloud Photos library
Backups — iPhone/iPad backups
Mail — Email and attachments

Step 5: Click a category to see details and delete large items.

How to delete large files:

Step 1: In the Manage Storage screen, click iCloud Drive.

Step 2: macOS shows folders and files sorted by size.

Step 3: Select large files you no longer need and click Delete.

How to upgrade iCloud storage:

Step 1: In System Settings > Apple ID > iCloud, click Manage or Upgrade.

Step 2: Choose a plan (50 GB, 200 GB, 2 TB, etc.).

Step 3: Confirm and enter your Apple ID password or use Touch ID.

Tip: If you share an Apple One subscription (which includes iCloud+), you may already have 50 GB or more.

Disable Desktop and Documents Sync

If you want to stop syncing Desktop and Documents to iCloud, you can disable this feature. Your files will be downloaded back to your Mac's local folders.

Step 1: Go to System Settings > Apple ID > iCloud > iCloud Drive.

Step 2: Toggle Desktop & Documents Folders off.

Step 3: A dialog appears asking what to do with your files. Choose:

Keep a Copy — Downloads all files from iCloud Drive > Desktop and Documents to your Mac's local Desktop and Documents folders.
Remove from Mac — Deletes local copies but keeps files in iCloud Drive (accessible via Finder > iCloud Drive).

Step 4: Click your choice.

Step 5: If you chose Keep a Copy, macOS downloads all files. This can take time if you have many large files.

What happens after disabling:

Desktop and Documents become local folders again.
Files are no longer synced across devices.
On other Macs with Desktop & Documents sync enabled, those files remain in iCloud.

Troubleshooting iCloud Drive Sync Issues

Files aren't syncing to other devices

Step 1: Check internet connection on all devices.

Step 2: On Mac, go to System Settings > Apple ID > iCloud and verify iCloud Drive is enabled.

Step 3: Restart your Mac.

Step 4: Check iCloud system status at apple.com/support/systemstatus. If iCloud Drive shows issues, wait for Apple to resolve them.

Step 5: Sign out and back in to iCloud:

Go to System Settings > Apple ID.
Scroll down and click Sign Out.
Sign back in with your Apple ID.

iCloud Drive is stuck uploading

Step 1: Check the Finder sidebar. If you see Uploading X items, wait. Large files take time.

Step 2: Open Activity Monitor (Applications > Utilities) and check if bird (the iCloud sync daemon) is using CPU. If it's active, sync is in progress.

Step 3: If stuck for hours, restart your Mac.

Step 4: Disable and re-enable iCloud Drive:

System Settings > Apple ID > iCloud > iCloud Drive — toggle off, wait 10 seconds, toggle back on.

"Not Enough iCloud Storage" error

You've exceeded your iCloud storage limit.

Step 1: Go to System Settings > Apple ID > iCloud > Manage.

Step 2: Delete large files or upgrade your plan.

Step 3: Disable Desktop & Documents sync if you don't need it (this can free up 50+ GB).

Files show a cloud icon but won't download

Step 1: Right-click the file and select Download Now.

Step 2: If it fails, check your internet connection.

Step 3: Sign out and back in to iCloud (see above).

Step 4: Check System Settings > Apple ID > iCloud and verify you're signed in and iCloud Drive is enabled.

Access iCloud Drive on iPhone, iPad, and Windows

iPhone and iPad

Step 1: Open the Files app.

Step 2: Tap Browse at the bottom.

Step 3: Under Locations, tap iCloud Drive.

Step 4: You'll see all your iCloud Drive folders, including Desktop and Documents (if sync is enabled).

Step 5: Tap any file to open it. Tap and hold to Download, Share, or Delete.

Windows PC

Step 1: Download and install iCloud for Windows from apple.com/icloud/setup/pc.

Step 2: Sign in with your Apple ID.

Step 3: Check iCloud Drive and click Apply.

Step 4: Open File Explorer. You'll see iCloud Drive in the sidebar.

Step 5: Access files just like any folder. Changes sync to your Mac and iOS devices.

iCloud.com

Step 1: Go to iCloud.com in any web browser.

Step 2: Sign in with your Apple ID.

Step 3: Click iCloud Drive.

Step 4: Browse files, upload new files (drag and drop), download, or delete.

Tip: Use iCloud.com to access files on non-Apple devices (Android, Linux, public computers).

FAQ

Does iCloud Drive work offline?

Yes, if files are downloaded to your Mac. Cloud-only files (with a cloud icon) require internet to access.

Yes. Right-click a folder in iCloud Drive and select Share. Choose Share Folder and invite people by email. They can view or edit files depending on permissions you set.

What happens to Desktop and Documents if I disable sync?

You choose: Keep a Copy downloads all files to local Desktop/Documents, or Remove from Mac keeps them in iCloud Drive only (accessible via Finder > iCloud Drive).

Can I use iCloud Drive and Dropbox at the same time?

Yes, but don't put your Dropbox folder inside iCloud Drive (or vice versa). This causes sync conflicts. Keep them separate.

Why are some files grayed out in Finder?

Grayed-out files with a cloud icon are cloud-only (not downloaded). Right-click and select Download Now to access them.

How do I move files from Dropbox/Google Drive to iCloud Drive?

Step 1: Download files from Dropbox/Google Drive to a local folder. Step 2: Drag them from that folder into Finder > iCloud Drive. Step 3: macOS uploads them to iCloud.

Can I access iCloud Drive on Android?

Only via iCloud.com in a web browser. There's no official iCloud Drive app for Android.

Does iCloud Drive sync in real-time?

Near real-time. Small files sync within seconds. Large files (videos, disk images) take longer depending on internet speed.

What if I delete a file by accident?

Step 1: Go to iCloud.com > iCloud Drive > Recently Deleted. Step 2: Select the file and click Recover. Step 3: Files stay in Recently Deleted for 30 days.

Conclusion

iCloud Drive is a powerful, seamless way to sync files across all your Apple devices and free up Mac storage using Optimize Mac Storage. Enabling Desktop & Documents sync ensures your most important files are always backed up and accessible from any device, whether you're working on a Mac, browsing files on your iPhone, or accessing them via iCloud.com.

Start by enabling iCloud Drive and Desktop & Documents sync in System Settings, then turn on Optimize Mac Storage if you need to reclaim local space. If you run out of iCloud storage, manage your files in System Settings > Apple ID > iCloud > Manage, delete large items you don't need, or upgrade to a larger iCloud+ plan. With iCloud Drive, your files are always available, always backed up, and always in sync.