"Dropbox Unexpectedly Quit" error on Windows 11 Notebook

AVG Internet Security / AVG Antivirus
1

Since upgrading to Windows 11 I have been getting this error. I thought it might be because the Dropbox installation was 32 bit and Windows 11 is 64 bit so I removed the app, reinstalled 64 bit and the app would not finish installing. I then allowed Dropbox as an app - manually (Blocked & Allowed Apps) - as AVG did not see it. Still would not install. I turned off the AVG shields and then it did. Today on re-starting the error came up again. I turned off the shields and reinstalled without removing and the app works again, with the shields back on?

1 Like
2
  1. Open AVG → Menu → Settings → Basic Protection → Exceptions
  2. Click “Add Exception” and add the following paths:

    • C:\Program Files\Dropbox\

    • C:\Users\<YourUser>\AppData\Roaming\Dropbox\

  3. Also add dropbox.exe to the allowed list under Blocked & Allowed Apps.
  4. Restart your PC after saving the changes.
  5. If the issue persists, go to AVG → Menu → Settings → Troubleshooting → Enable debug logging, restart once more, and check if it still flags Dropbox. Then contact AVG support with the log — it’s a known compatibility issue since Windows 11’s last update.
3

I described it badly, but I had done that thanks. My poor description is now in italics, and I have added in brackets (Blocked & Allowed Apps) for clarification. I have not yet tried logging the fault.

I now have to turn off AVG, start Dropbox manually and then turn on AVG after every re-start.

4

At AVG online support suggestion I have uninstalled and re-installed AVG Security. The problem is still there. I have now had a chat online with an Agent (Amit - many thanks) and the issue has been escalated. I am waiting for a further response.

5

“Blocked & Allowed Apps” did not work. Menu → Settings → General → Exceptions → Add Exception C:\Program Files (x86)\Dropbox* did it. While there are obvious risks to adding exceptions like this, for the moment, this has solved the problem.
Thank you Thomas_Charle

6

Helpful fix to theVip Youcine suggests reinstalling Dropbox or updating Windows 11 to solve the issue.

7

Thank you. I had tried reinstalling Dropbox as noted and Windows 11 is always updated. The only solution which worked was adding the Exception.

8

After an online session with AVG Support the solution was applied.