If your Dropbox desktop installation experiences any of the following behavior, your Dropbox installation may be inaccessible or corrupted:
- Dropbox closes as soon as it opens.
- Dropbox fails to open and reports an error message. (If the error message is "OperationalError" or "BrokenTempDirError," fix the permissions for your %TEMP% folder.)
- Dropbox is not syncing and reports that you're running an old version of the application.
- The Dropbox system tray/menu bar icon is endlessly syncing (as indicated by spinning arrows on a blue icon), but not making any progress.
- The syncing status in your Dropbox menu says "Permission denied" or "Rejected by Server."
- The Dropbox contextual menu is missing.
- Syncing icons do not appear correctly.
If Dropbox appears to be stuck during the sync process for an extended period of time, with no sync speed in the status, first ensure that your antivirus or system optimization application isn't interfering with the Dropbox application. This is a known issue with antivirus applications such as:
- Panda Global Protection (Windows) - Contact Panda support
- ESET NOD32 (Windows) - Contact ESET support
- McAfee VirusScan Enterprise 8.8 (Windows) - Contact McAfee support. Certain files, generally .xlsx or .docx, seem to be stuck due to the OnAccess scan feature.
If this happens to you, consider adding Dropbox to your application's whitelist or try disabling your antivirus application and restarting the Dropbox application.
TuneUp Utilities (Windows) is also known to optimize your computer by uninstalling Dropbox. If you're running TuneUp, try disabling the application and reinstalling the Dropbox application. You can report the issue with Tuneup using their online web form.
If you're not running an antivirus application or are sure it's not interfering with Dropbox, your Dropbox settings may be inaccessible. If your settings are corrupted, one way to reset them is by unlinking and then relinking your computer to your Dropbox account. Don't worry, the files in your Dropbox folder will remain untouched.
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If unlinking and relinking your account doesn't solve the issue, your settings may be protected or inaccessible due to a permissions problem. If this is the case, you can remove your settings by hand using an administrative account. Here's how: