The desktop app won't run, Failed to create keystore regkey

[ElSid1]

Installed DropBox on a clean Windows 10 computer. At one point, was running OK on Admin Account.

Will fail to autorun on standard user account (I had an issue with MS creating a NEW account when I wanted local ...

I followed How to run an advanced reinstall of Dropbox | Dropbox Help and it still failed

bn.BUILD_KEY: Dropbox
bn.VERSION: 155.4.5493
bn.constants.WINDOWS_SHELL_EXT_VERSION: 52
bn.is_frozen: True
machine_id: XXX
pid: 9320
cwd: 'C:\\Program Files (x86)\\Dropbox\\Update\\1.3.583.1'
real_path='C:\\Program Files (x86)\\Dropbox\\Update\\1.3.583.1'
mode=0o40777 uid=0 gid=0
parent mode=0o40777 uid=0 gid=0
HOME: None
appdata: 'C:\\Users\\{USER}\\AppData\\Local\\Dropbox'
real_path='C:\\Users\\{USER}\\AppData\\Local\\Dropbox'
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\\154.4.5363\\python-packages.zip\\dropbox\\client\\ui\\common\\boot_error.pyc'
real_path='C:\\Program Files (x86)\\Dropbox\\Client\\154.4.5363\\python-packages.zip\\dropbox\\client\\ui\\common\\boot_error.pyc'
not found
parent not found
TMP: C:\Users\{USER}\AppData\Local\Temp
TEMP: C:\Users\{USER}\AppData\Local\Temp
tempdir: 'C:\\Users\\{USER}\\AppData\\Local\\Temp'
real_path='C:\\Users\\{USER}\\AppData\\Local\\Temp'
mode=0o40777 uid=0 gid=0
parent mode=0o40777 uid=0 gid=0
Traceback (most recent call last):
File "dropbox\client\mapreduce.pyc", line 42, in __init__
File "dropbox\client\mapreduce.pyc", line 67, in _get_user_key_with_retries
File "dropbox\client\mapreduce.pyc", line 90, in get_user_key
File "dropbox\client\mapreduce.pyc", line 166, in get_user_key
File "dropbox\keystore\keystore_win32.pyc", line 88, in get_versioned_key
File "dropbox\keystore\keystore_win32.pyc", line 109, in _read_key_registry
dropbox.keystore._exceptions.KeystoreMissingItem: Key not found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "dropbox\client\main.pyc", line 7878, in main_startup
File "dropbox\client\main.pyc", line 2735, in initialize
File "dropbox\client\main.pyc", line 1552, in startup_low
File "dropbox\client\multiaccount\instance_database.pyc", line 738, in __init__
File "dropbox\client\mapreduce.pyc", line 46, in __init__
File "dropbox\client\mapreduce.pyc", line 87, in new_user_key
File "dropbox\client\mapreduce.pyc", line 161, in new_user_key
File "dropbox\keystore\keystore_win32.pyc", line 62, in store_versioned_key
File "dropbox\keystore\keystore_win32.pyc", line 82, in _write_key_registry
dropbox.keystore._exceptions.KeystoreRegKeyError: Failed to create keystore regkey!

[Jay · Accepted solution]

Hi @ElSid1, thanks for bringing this to our attention.

The problem you're experiencing could be related with the level of access to the Windows Registry.

This means that Dropbox is attempting to access vital account information using your Windows Registry, but is being denied permission. If you're not on a Dropbox Basic plan with more than 3 devices connected, try using these steps in order to fix the issue. 

Keep me updated with any progress!

[ElSid1]

@Jay,

OMG, didn't even think about the 3 devices as I reformatted the drive. I went in and deleted all linked devices and ... unfortunately, can't test your solution as I re-reinstalled Windows 10.

[Walter]

Hey @ElSid1, sorry to jump in here.

I just wanted to check if you're still getting the same error if it was resolved for you after all. 

Let us know and we'll take it from there!

[ElSid1]

@Walter,

I've accepted @Jay solution; however, I never got to the root of the issue. Just re-reinstalled windows