Mapped Drives not visible in Secure Copy (4271703)

When UAC is enabled and UAC policy is configured to Prompt for credentials, a new logon session is created in addition to the existing logon session. Previously created symbolic links that represent the drive mappings will be unavailable in the new logon session.

Method 1

Map the required drives again in the elevated session.

Method 2

1. In Registry Editor, locate and then click the following registry subkey: 
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
2. Right-click Configuration, click New, and then click DWORD (32-bit) Value.
3. Name the new registry entry as EnableLinkedConnections.
4. Double-click the EnableLinkedConnections registry entry.
5. In the Edit DWORD Value dialog box, type 1 in the Value data field, and then click OK.
6. Exit Registry Editor, and then restart the computer.