How to access a SQL Server database using another user with permissions in the same intranet
You can open SSMS as her Windows user account by doing either of the following:


Right click the SSMS shortcut while holding the SHIFT key. Click on Open as another user and enter the other users credentials.
Create a shortcut in the following format:



  C:\Windows\System32\runas.exe /savecred /user:DOMAIN\USERNAME
  "C:\Program Files (x86)\Microsoft SQL
  Server\140\Tools\Binn\ManagementStudio\Ssms.exe"


You'll need to replace the path to SSMS.exe with your version.

Once you open the shortcut and enter the password for the account, you can then simply double click the shortcut in the future as it will store your credentials for later use.