Hi BerndBausch,
I am an independent advisor and a Microsoft user like you, and I would be happy to help you out with this.
When mapping a drive in Windows 10, you should see the option to "Connect using different credentials". I have included a screenshot of this, as well as the instructions to map a network drive in Windows 10 below:
- Open File Explorer from the taskbar or the Start menu, or press the Windows logo key + E.
- Select This PC from the left pane. Then, on the Computer tab, select Map network drive.
- In the Drive list, select a drive letter. (Any available letter will do.)
- In the Folder box, type the path of the folder or computer, or select Browse to find the folder or computer. To connect every time you log on to your PC, select the Reconnect at sign-in check box.
** This is the point where you should also choose "Connect using different credentials". Upon clicking Finish in the next step, it will ask you for the username and password to use.
- Select Finish.
Source: https://support.microsoft.com/en-ca/help/402663...
I hope this has helped you. If this does not work or if you have any other error messages or questions, please reply and let us know and we would be happy to look into providing some different suggestions!
Regards,
-Ashton