Google Drive Sync Error — What It Means & How to Fix It

What Does This Error Mean?

A Google Drive sync error means the Google Drive app on your computer cannot sync your files to the cloud. Your files are safe on your computer — they just are not being backed up or updated in the cloud. Most sync errors are caused by network problems, account issues, or a file that Drive cannot handle.

Affected Models

Google Drive for Desktop (Windows)
Google Drive for Desktop (macOS)
Google Backup and Sync (legacy)

Common Causes

Your internet connection dropped or is too slow for Drive to sync files
You are signed out of your Google account in the Drive app
A specific file has a name with special characters or is too large for Drive to sync
Your Google Drive storage quota is full — no more files can be uploaded
The Google Drive for Desktop app has a software bug and needs to be restarted or updated

How to Fix It

Check your internet connection. Try loading any website to confirm you are online. A dropped connection is the most common cause of Drive sync errors.

If your connection is slow or intermittent, Drive will pause syncing until the connection is stable.
Click the Google Drive icon in the system tray (bottom-right of screen). If it shows a specific error message or a file name, that tells you exactly what is failing.

Drive often identifies the exact file causing the problem. If one file keeps failing, try removing it from the sync folder temporarily.
Check your Google Drive storage at drive.google.com/settings. If it says '15 GB of 15 GB used' (or similar), you are out of space and cannot sync new files.

Google gives 15 GB of free storage shared across Drive, Gmail, and Photos. Delete old files or upgrade your storage plan.
Pause and resume syncing. Click the Drive icon in the system tray, click the gear icon, select Pause syncing, wait 10 seconds, then click Resume syncing.

This is essentially a soft restart for the sync process — it often resolves temporary glitches.
Quit Google Drive completely (right-click the tray icon > Quit), wait 30 seconds, and reopen it. If the problem persists, check for app updates in the Drive settings.

A full restart of the Drive app clears any stuck sync processes.

When to Call a Professional

Google Drive sync errors are almost always fixable without professional help. If your files seem to have disappeared from Drive's website after a sync error, contact Google Support immediately. Do not delete the local Drive folder while troubleshooting — this could cause data loss.

Frequently Asked Questions

If Drive stops syncing, are my files deleted from Drive?

No. When sync stops, existing files in the cloud stay exactly as they were at the time sync stopped. New files added to your local Drive folder just have not been uploaded yet — they are not deleted. Once sync resumes, all pending changes upload automatically.

What file types or names cause sync errors?

Google Drive has trouble with files that have: names containing special characters like / \ : * ? " < > |, names longer than 255 characters, or files larger than 5 TB. Renaming the file to remove special characters usually fixes the problem.

How do I know which files failed to sync?

Click the Google Drive icon in the system tray. Drive shows a list of files currently syncing and any files that failed. Failed files are shown with an error icon and often include a short description of why they failed.