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809 TopicsI'm getting an error when the Dropbox app starts up on Windows 11
Device (Lenovo laptop) Operating System/Browser (if using the web) (Windows 11.) Dropbox App Version (if using the app) (latest) Question or Issue After booting the PC the dropbox App refuses to start and displays a window with the message "Couldn't start dropbox". The dropbox icon in the taskbar disapears and my files in the dropbox folder are inaccessible by Word, Excel etc. I did the "Advanced reinstall of Dropbox" as can be found in the fora but no results. I am using Dropbox for many years without any problems. Below the error report generated by Dropbox. The very last record shows FileNotFoundError but which file is not mentioned. I am really stocked but need a working Dropbox system. Hope I can find some help here. Date: 3-12-2026 After action: advanced reinstall Error report: bn.BUILD_KEY: Dropbox bn.VERSION: 237.4.5655 bn.constants.WINDOWS_SHELL_EXT_VERSION: 88 bn.is_frozen: True machine_id: (content removed by me) pid: 8816 cwd: 'C:\\Program Files (x86)\\Dropbox\\Update\\1.3.1053.1' real_path='C:\\Program Files (x86)\\Dropbox\\Update\\1.3.1053.1' mode=0o40777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 HOME: None appdata: 'C:\\Users\\admin\\AppData\\Local\\Dropbox\\instance1' real_path='C:\\Users\\admin\\AppData\\Local\\Dropbox\\instance1' mode=0o40777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 dropbox_path: None not found parent not found sys_executable: 'C:\\Program Files (x86)\\Dropbox\\Client\\Dropbox.exe' real_path='C:\\Program Files (x86)\\Dropbox\\Client\\Dropbox.exe' mode=0o100777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 trace.__file__: 'C:\\Program Files (x86)\\Dropbox\\Client\\237.4.5655\\python-packages.zip\\dropbox\\client\\ui\\common\\boot_error.pyc' real_path='C:\\Program Files (x86)\\Dropbox\\Client\\237.4.5655\\python-packages.zip\\dropbox\\client\\ui\\common\\boot_error.pyc' not found parent not found TMP: C:\Users\admin\AppData\Local\Temp TEMP: C:\Users\admin\AppData\Local\Temp tempdir: 'C:\\Users\\admin\\AppData\\Local\\Temp' real_path='C:\\Users\\admin\\AppData\\Local\\Temp' mode=0o40777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 Traceback (most recent call last): File "desktop/dropbox/client/main.py", line 6857, in _setup_root_for_account File "desktop/dropbox/sync_root/helpers.py", line 199, in create_root_for_account File "desktop/dropbox/foundation/futures/basic.py", line 1044, in result File "desktop/dropbox/sync_root/manager.py", line 382, in create_root File "desktop/dropbox/sync_root/handlers/windows/cloud_files.py", line 299, in register File "desktop/dropbox/sync_root/handlers/windows/cloud_files.py", line 601, in _register FileNotFoundError: [WinError -2147024894] The system cannot find the file specifiedSolved30Views0likes5CommentsThe behavior of Dropbox tray Icon is completely wrong on Windows 10
I can't believe this problem has not been addressed since 10 years ago, and also it get worse with the recent UI revamp of the user interface. All app having a tray icon agent should follow a well-defined behavior when interacting with the user, depending on mouse gesture: Right Mouse Button Expected behavior Show a contextual menu for selecting options Current behavior It opens a popup window, user need to press CTRL+LMB to see the menu Left Mouse Button (single click) Expected behavior Show a popup form if applicable Current behavior A form is shown, then it is hidden, then it is shown again flashing Left Mouse Button (Double click) Expected behavior Execute a default action Current behavior If both open the dropboox root folder AND flash the main form on and off Please, it's time to address this issue, comeon dropbox. Right mouse button should show just the contextual menu Left mouse button should show the control form, with toggle, but without flashing on/off Double click should just open the root folder, without showing the form It's all about very wrong tray icon behavior at this time.118Views0likes13CommentsHidden Dropbox logs folder is stuck, continually growing bigger, now beyond 300GB
Application Affected (Dropbox app & backup) Device (Optiplex 3060 i5-8500, 16GB RAM, 500GB SSD) Operating System/Browser (if using the web) (Windows 10) Dropbox App Version (if using the app) (236.4.5918) Question or Issue For the past few days, a folder called "log" within the dropbox system folders, specifically "C:\Users\username\AppData\Local\Dropbox\logs" is constantly growing and growing.. occupying my entire hard disk! please help.. Not sure if they're at all related, but the following points have recently changed in this computer: 1. I bought a new SSD for backup purposes, which I have set to backup by Dropbox It's 2TB, 900GB of which are occupied, it's connected over USB and it doesn't seem to actually backup.. 2. I removed Avast and installed Bitdefender instead. I was running Malwarebytes and Spybot in parallel, though these have now been removed. I have noticed that the Tray Assistant almost maxes out my CPU use, as well.. Any ideas of how to troubleshoot/resolve this? Many thanks!476Views0likes22CommentsI've renamed my file, but the desktop app still says it can't sync it, even though it has.
Application Affected Dropbox Desktop Windows 10 Device Windows 10 on Xeon E5 Operating System/Browser (if using the web) Windows 10.0.18363.1256 Dropbox App Version (if using the app) 237.4.5655 Question or Issue Dropbox for Windows has this weird habit of declaring some files unsyncable. Despite them being valid Windows (and Linux) filenames, and despite them normally syncing, some just refuse. In this case, ROMÂNIA.pdf (that is capital A with circumflex, aka ACIRC, or 196 ASCII as far as I can tell). So, it claims to have a sync issue. When the help pops up, it claims that invalid characters can't be in the name (they aren't), and I went through the list. It's a standard file character ban. Slashes, colon, pipe, start, etc. The page indicates nothing in the file name. Eventually, I decided it's easier to just contact the person with the file and obtain the permission to just rename it (common use file), which I did, ROMÂNIA.pdf got renamed to "ROMANIA.pdf". This synced successfully (file has green check). HOWEVER. The error stays. When the attached screen is open, it flickers to the animated rectangle and back, as if it is trying to sync the file. It can't. Not when the file was there, not when it's gone. When trying to "view file" it just opens "My computer" before and after the rename, it was never helpful, I don't know why. There is no button to ignore or dismiss the error and it's stuck. This is a high availability system, no I did not restart or update the system. Dropbox updates as complained. A quick Google shows that 237.4.5655 is stable release from Nov 2025. So that works. Filesystem path to the file is 105 characters long, plus a backslash and the file name 117. So that's not it. There are no disk errors. I attempted to recreate the file where it was, and in lower and upper case, deleted, moved it and it syncs just fine. Whatever it was, it wasn't the name, despite the error message. My best guess, seeing how the error is stuck and the path doesn't open is that maybe the file was named something like ROMÂNIA/.pdf or something illegal, that threw an error, and when corrected it stuck somehow. Basically, the bug being the error message not the file. So, any ideas? Why the sync not happening? Why is the "view file" unhelpful? Why is the error not going away?Solved33Views0likes3CommentsDropbox options not appearing when right clicking in Explorer on Windows 11
I am running latest versions of Windows 11 and Dropbox using just a single Dropbox account login. When I go into File Explorer, the right click option to see Dropbox has disappeared. I read a few of the possible solutions on this site, especially the one about max 15 Overlay Identifiers and the suggestion to move the options around to ensure Dropbox appears inside the first 15 in the Registry list. However, if you look at below, OneDrive is using positions 1-7 and Dropbox is using 8 to 17. I am not sure how to manage this without causing problems with OneDrive. Any help will be very much appreciated!Solved63Views0likes4CommentsMy Windows 10 File Explorer hangs when accessing Dropbox folders.
Application Affected File Explorer Device PC Operating System/Browser (if using the web) Windows 10 Dropbox App Version (if using the app) Latest When I access sub folders in the Dropbox folder using Microsoft File Explorer then file explorer effectively hang - it does open eventually but may take up to 20 minutes When I use another file manager to browse the folder everything open file - so its not the operating system - but there seem to be some issue with File Explorer Regards Steven32Views0likes2CommentsThe Dropbox desktop app won't start or sync on Windows 11
Application Affected Dropbox Operating System/Browser (if using the web) Windows 11 Dropbox App Version (if using the app) App won't launch but i have installed the latest version Question or Issue I noticed that Dropbox was no longer syncing my photos and files from my PC. Saw that the System Tray icon was gray and when I clicked is just said starting. I followed some other troubleshooting steps like uninstall and reinstall, removing old users (there's just me), restarting, etc. I even tried clearing the cache folder. When I start the app, it takes me through connecting and the startup options and connects to my account. At the end of this process I get the error "Couldn't start Dropbox" The text of the second link is : bn.BUILD_KEY: Dropbox bn.VERSION: 237.4.5655 bn.constants.WINDOWS_SHELL_EXT_VERSION: 88 bn.is_frozen: True machine_id: 32b5fdfb-d178-4a0f-bcb0-eccb1b7070bb pid: 37392 cwd: 'C:\\Program Files (x86)\\Dropbox\\Client' real_path='C:\\Program Files (x86)\\Dropbox\\Client' mode=0o40777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 HOME: None appdata: 'C:\\Users\\Owner\\AppData\\Local\\Dropbox\\instance2' real_path='C:\\Users\\Owner\\AppData\\Local\\Dropbox\\instance2' mode=0o40777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 dropbox_path: None not found parent not found sys_executable: 'C:\\Program Files (x86)\\Dropbox\\Client\\Dropbox.exe' real_path='C:\\Program Files (x86)\\Dropbox\\Client\\Dropbox.exe' mode=0o100777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 trace.__file__: 'C:\\Program Files (x86)\\Dropbox\\Client\\237.4.5655\\python-packages.zip\\dropbox\\client\\ui\\common\\boot_error.pyc' real_path='C:\\Program Files (x86)\\Dropbox\\Client\\237.4.5655\\python-packages.zip\\dropbox\\client\\ui\\common\\boot_error.pyc' not found parent not found TMP: C:\Users\Owner\AppData\Local\Temp TEMP: C:\Users\Owner\AppData\Local\Temp tempdir: 'C:\\Users\\Owner\\AppData\\Local\\Temp' real_path='C:\\Users\\Owner\\AppData\\Local\\Temp' mode=0o40777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 Traceback (most recent call last): File "desktop/dropbox/client/main.py", line 6857, in _setup_root_for_account File "desktop/dropbox/sync_root/helpers.py", line 199, in create_root_for_account File "desktop/dropbox/foundation/futures/basic.py", line 1044, in result File "desktop/dropbox/sync_root/manager.py", line 382, in create_root File "desktop/dropbox/sync_root/handlers/windows/cloud_files.py", line 299, in register File "desktop/dropbox/sync_root/handlers/windows/cloud_files.py", line 601, in _register OSError: [WinError -2147024501] Access to the cloud file is denied I don't use the cloud back feature at all. This just started happening about a week ago. Any Ideas. The files are there and I can access through explorer, but they are not syncing. Sync is working from my Android phone for photos etc. but they are not syncing back to my desktop. ThanksSolved179Views1like15CommentsMy Windows 11 desktop app is crashing after renaming files I've synced from the mobile app.
Application Affected Dropbox desktop Client Device PC Operating System Windows 11 Dropbox App Version 237.4.5655 Question or Issue App crash during sync. Step by step to recreate the crash Upload a file via cellphone app (Android) File is downloaded/synced correct to Dropbox folder in Windows. Rename the file in the Dropbox folder in Windows. Dropbox client crash, icon in taskbar next to the clock disappears. The Dropbox services is still visible in Task Manager in Windows. Both the client and the server. Windows Log Errors (Swedish) Failed to connect to the driver: (-2147023658) Det gick inte att upprätta en anslutning till servern eftersom maximalt antal samtidiga anslutningar för detta konto redan har gjorts. , retrying... (-2147023658) Det gick inte att upprätta en anslutning till servern eftersom maximalt antal samtidiga anslutningar för detta konto redan har gjorts. Failed to connect to the driver: (-2147024894) Det går inte att hitta filen. , retrying... (-2147024894) Det går inte att hitta filen. Failed to get driver message: (-2147024890) Referensen (handle) är felaktig. (-2147024890) Referensen (handle) är felaktig. This has not been a issue before, it started just a few days ago. Not sure exact date though.Solved75Views0likes6CommentsCan't choose my Dropbox folder and cannot see the advanced settings after reinstall
Application Affected Dropbox / Windows 11 Device ASUS Vivobook Question or Issue The main issue is that Dropbox/Windows made a serious change and did not inform us. I keep ALL my files on my desktop at all times EXCEPT one "Online" folder. I was managing this fine with per folder sync behavior. The update changed that WITHOUT asking me. So I saw new icons in Windows and realized that a lot of files were missing (only in the could). A random mix. Chaos. I set the preferences back to Offline. Then proceded to the folders but hell broke loose. All folder went into a sync mode and thousands of files were being processed. Tried a reinstall in the hope to re-index. Tried many Clean re-install w fresh installer including 237.4.5655 Offline. Cleared AppData, etc. But I never can choose my existing 300Gig C:\Dropbox folder. I never get to the advanced option. I really need help !112Views0likes12Comments