How to Fix Google Drive for Desktop Not Syncing Without Losing Unsynced Files

When Google Drive for desktop stops syncing, the worst first step is to start deleting caches, disconnecting accounts, or reinstalling the application without checking whether the computer contains changes that have not reached the cloud.

The correct troubleshooting order is: identify what is unsynced, protect it, then repair the sync problem.

1. Check Drive’s status before changing anything

Open Google Drive for desktop from the taskbar or menu bar. Look at the activity list and any error message.

Ask three questions:

• Is Drive paused?
• Is one file failing, or is everything stuck?
• Does the problem affect uploads, downloads, or both?

If syncing is paused, resume it and give Drive a few minutes before troubleshooting further.

2. Protect recent local work

If you have edited files that may not have uploaded, copy those files to a temporary folder outside the Google Drive synchronization location before reinstalling, disconnecting the account, or changing Stream/Mirror mode.

For mirrored files, check the corresponding file at drive.google.com. Compare timestamps and open the cloud copy if necessary.

3. Check Google storage quota

Your Google storage is shared between services such as Drive, Gmail, and Google Photos.

If the account is full, new Drive files may stop uploading even though the computer has plenty of free disk space.

Open your Google storage page and check the account quota. If it is full, remove unnecessary cloud data or increase storage before continuing.

4. Check local disk space

Drive also needs working space on the computer.

Mirrored files require enough space for the local My Drive copy. Streamed files use local cache space and can fail or behave poorly when the system drive is almost full.

Free some local space if necessary, then restart Drive for desktop.

5. Check the network—but do not assume “Internet works” means Drive works

Open several websites and then try drive.google.com.

If you use a VPN, proxy, firewall, security product, or filtered corporate network, temporarily test without the VPN where policy allows. A connection can work for ordinary browsing while authentication or synchronization traffic is blocked.

On a managed computer, do not change firewall or proxy settings without IT approval.

6. Look for one problematic file

If the activity panel repeatedly reports the same file, focus on that item.

Common causes include:

• A file that is open and locked by another application.
• An unsupported or problematic filename.
• Permission problems.
• A file being changed continuously by another program.
• Extremely large or rapidly changing application databases.

Close the related application and try again.

7. Streamed files and offline files need different thinking

With Stream files, most content lives in the cloud and is presented through a virtual Drive location. A file you need without Internet access should be explicitly marked for offline use.

If an offline streamed file is missing, confirm the account is connected and the offline download finished. On Windows, also check that Drive for desktop is running. Macs using Apple File Provider on macOS 12.1 or later can access downloaded offline files with the Drive app closed.

8. Mirror mode can create duplicate-folder confusion

If you recently changed from Mirror to Stream, the old mirrored folder may still exist on disk even though it is no longer the active synchronized location.

Do not assume two similar-looking folders are both syncing. Open Drive preferences and confirm the current mode and active location.

9. Restart Drive before reinstalling it

Quit Google Drive for desktop completely and reopen it. If that does not help, restart the computer.

This clears temporary process and file-lock issues without changing account configuration.

10. Reconnect or reinstall only after protecting unsynced files

If the application itself appears corrupted, sign out/reconnect or reinstall Drive for desktop—but only after you have copied unsynced local work somewhere safe and verified what exists in the cloud.

After reinstalling, let Drive complete its initial indexing and synchronization before moving large folders around.

Do not use “delete the cache” as step one

A cache can contain locally available streamed content and pending working data. Clearing it may be appropriate in a specific documented failure, but it should not be your first response to an unknown sync problem.

If one Microsoft Office file keeps conflicting

Drive for desktop includes handling for Office files and can detect editing activity in supported scenarios. Close every copy of the document, wait for Drive to settle, and then reopen the cloud version. If several people are editing a local Office file outside Google Docs, duplicate/conflicted copies can be a symptom of simultaneous edits rather than a broken Drive installation.

Remember what synchronization is designed to do

Drive keeps multiple locations consistent. That is convenient, but it also means mistakes can synchronize.

Before major troubleshooting, make an independent copy of anything that exists only on one device. The five minutes spent protecting unsynced files are far more valuable than a fast reinstall that leaves you wondering which version was lost.

Official references

Google Support — Stream and mirror filesOfficial reference Google Support — Advanced Drive for desktop configurationOfficial reference