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

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!