Can't start Dropbox on my PC

If you're talk about Dropbox desktop apps. it is service and function are all terminate on january 17 2022.
so you can only use file explorer or finder of mac

I am having the exact same problem on Windows 10.  I have performed the Advanced Reinstall multiple times.

This happens when using my regular Microsoft account on my laptop.

Presuming something was corrupt under that user, I then used my local account on the laptop, which I never run programs from and decided to try and start Dropbox.exe, which did then start.  I then signed-in with my regular Dropbox credentials and everything synced.
***This however is not an acceptable solution because I need my Dropbox files under my regular Microsoft account on my laptop.***

!!!This does prove that the root of the problem lies with the Dropbox data associated with my regular Microsoft account on my laptop!!!

I tried renaming the Dropbox folder hoping that would trigger a re-signin and synch but nope.

Now that someone else is experiencing the same problem, it is apparently a problem with release 140.4.1951.

We have restarted the computer, uninstalled and reinstalled dropbox off the computer. If anyone knows how to fix this it would be much appreciated!!

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megatron1003 wrote:

We have restarted the computer, uninstalled and reinstalled dropbox off the computer.

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You need to click the linked text file to see the full log and error. Copy and paste the content in a reply here.

bn.BUILD_KEY: Dropbox
bn.VERSION: 165.4.4300
bn.constants.WINDOWS_SHELL_EXT_VERSION: 59
bn.is_frozen: True
machine_id: 4baef944-5bbb-4679-9eb8-83e634d39198
pid: 2284
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\\Dawn\\AppData\\Local\\Dropbox\\instance1'
real_path='C:\\Users\\Dawn\\AppData\\Local\\Dropbox\\instance1'
mode=0o40777 uid=0 gid=0
parent mode=0o40777 uid=0 gid=0
dropbox_path: 'C:\\Users\\Dawn\\Dropbox'
real_path='C:\\Users\\Dawn\\Dropbox'
mode=0o40777 uid=0 gid=0
parent mode=0o40777 uid=0 gid=0
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\\165.4.4300\\python-packages.zip\\dropbox\\client\\ui\\common\\boot_error.pyc'
real_path='C:\\Program Files (x86)\\Dropbox\\Client\\165.4.4300\\python-packages.zip\\dropbox\\client\\ui\\common\\boot_error.pyc'
not found
parent not found
TMP: C:\Users\Dawn\AppData\Local\Temp
TEMP: C:\Users\Dawn\AppData\Local\Temp
tempdir: 'C:\\Users\\Dawn\\AppData\\Local\\Temp'
real_path='C:\\Users\\Dawn\\AppData\\Local\\Temp'
mode=0o40777 uid=0 gid=0
parent mode=0o40777 uid=0 gid=0
Traceback (most recent call last):
File "dropbox\client\main.pyc", line 811, in wrapper
File "dropbox\client\main.pyc", line 6279, in finish_dropbox_boot
File "dropbox\client\message_queue.pyc", line 306, in _wrapped
File "dropbox\client\main.pyc", line 5821, in _init_components_for_account
File "dropbox\client\main.pyc", line 5745, in create_sync_engine
File "dropbox\sync_engine_boundary\factory.pyc", line 225, in make_sync_engine
File "dropbox\sync_engine\nucleus\classic_client\sync_engine.pyc", line 245, in __init__
File "dropbox\sync_engine\nucleus\classic_client\modern_client\modern_client.pyc", line 280, in __init__
File "dropbox\sync_engine\nucleus\classic_client\modern_client\base.pyc", line 263, in __init__
File "dropbox\sync_engine\nucleus\classic_client\thin_adapter\in_proc.pyc", line 220, in __init__
File "dropbox\sync_engine\nucleus\classic_client\thin_adapter\in_proc.pyc", line 531, in _init_new_engine_locked
File "dropbox\sync_engine\nucleus\thin_client\client.pyc", line 138, in __init__
File "desktop\extensions\nucleus\nucleus_python.pyx", line 78, in nucleus_python.NucleusSyncEngine.__cinit__
nucleus_python.SyncEngineError: "Initializing engine |>> Initializing filesystem |>> Attempting to create tmp_dirs |>> Error making tempdir |>> NtCreateFile syscall: mkdirat_helper_inner |>> Race detected"

Hi megatron1003, let's jump right into this! 

Can you perform an advanced re-install for your device, and let me know how it goes? 

Keep me posted!