Cannot access to a Windows folder content
If you see an error appearing when you try to access a Windows folder with your credentials, here is a list of steps you have to be sure :
You can follow this article : sharing a folder.
Windows allows to connect with a local or Microsoft account. Microsoft accounts (with email) don't work.
When you go in your user account settings, you can switch from a Microsoft account (with email) to a local account (with simple credential)
To activate it, follow this process : activate SMB1.
Your account is not authorized to connect from this device
In order to resolve this message, you have to authorize the connection "non secured".
Go on the key : HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters
On the right, create a key AllowInsecureGuestAuth and give it the valor "1".
If you still cannot access your folder, contact customer support and tell us your Windows version.
And it could be useful to send us some screenshots of each steps that you followed.