Dropbox
Dropbox 264.4.3385 is a Windows, macOS and Linux sync client with selective sync, online-only placeholders, offline files, sharing and version recovery.
What Dropbox provides
Dropbox synchronizes files between devices and can show cloud content as online-only placeholders to reduce local disk use. Selective sync hides whole folders from a device, while offline access keeps a complete local copy for work without a network connection.
Sync and recovery boundaries
Renames, moves and deletions can propagate to the account and other devices. Version history and the recovery area help with mistakes, but retention depends on the account plan. Keep an independent backup for important data and wait for a completed sync before migrating a device.
Encryption and sharing
Standard personal files use transport and server-side encryption; this is different from default end-to-end encryption with a user-controlled key. Team encrypted folders have separate feature limits. Review date: 2026-08-23.
Save to your cloud drive
Open the cloud drive to get the file directly, or save it for convenient access on another device.
Quark Cloud Drive
RecommendedSave Dropbox to this cloud drive
Baidu Netdisk
Save Dropbox to this cloud drive
Dropbox 264.4.3385 installation and storage guide
Use a small test folder to distinguish selective sync, online-only, offline access and deletion before moving important data to a new device.
Before you start
- Check the operating system, architecture, account quota and local disk space.
- Back up files that are not yet synchronized or have conflicts.
- Decide which folders need two-way sync and which only need cloud retention.
Installation steps
- 01
Install the matching client
Use the Windows, macOS or Linux package for the device, then confirm the displayed version and signed-in account.
- 02
Choose a test folder
Start with a small directory, set new content to online-only when disk space is limited and mark work folders for offline access.
- 03
Configure selective sync
Uncheck folders that should stay in the cloud but disappear from the local file tree; wait for the status to settle before adding local folders with the same name.
Quick start
- 01
Test online-only and offline states
Set a test file to online-only, observe its placeholder icon and disk usage, then make it available offline and reopen it after the download completes.
- 02
Test a change and recovery
Edit a copied file on one device, observe the update on another and recover an unimportant test file to understand the retention window.
- 03
Review sharing and security
Enable two-step verification and review devices, applications and shared links before adding sensitive folders.
Usage tips
- Selective sync hides folders; online-only keeps a visible placeholder; offline access downloads a complete copy.
- Sync is not an independent backup because deletions and moves can propagate.
- Standard personal storage is not automatically a user-controlled end-to-end encrypted vault.
Troubleshooting and uninstall
Why is a file stuck in syncing or duplicated?
Check network, disk space, system time, filename rules and security software. Compare conflicting copies rather than repeatedly retrying bulk operations.
Why does the icon not match disk usage?
Wait for indexing, restart the client and confirm whether the item is online-only, temporarily available or offline. Use the state controls instead of deleting a placeholder.
- Finish sync and disconnect the deviceConfirm that no transfers or conflicts remain, save required local copies and sign out before moving the Dropbox folder.
- Uninstall and review local dataRemove the client through the operating system and distinguish complete files, placeholders and cache before clearing data.
Frequently asked questions
What is the difference between selective sync and online-only?
Selective sync hides entire folders locally while keeping them in the cloud. Online-only keeps a placeholder visible and downloads the file when opened.
Does deleting an online-only file affect the cloud copy?
Yes. Deletion can sync to the account and other devices. Use the online-only control to free space without deleting the item.
Does the download require an extraction code?
The Quark entry does not require one; the four-character code for the Baidu entry is shown beside its download entry.