Missing mapped drive letter on elevated Windows 10

[weke]

I tested my own setup created with NSIS 3.01 on two machines. First on Windows 7 Pro 64Bit and on Windows 10 Pro 64 Bit.
Both use a network share created in a login script with the following command:

code:
net use N: \\MyServer\SharedFolder\

When I test the setup only on windows 7 the Drive N: could selected or entered manually as a Directory. On Windows 10 N: isn't allowed and was not shown in Drive List (only in NSIS, Drive N was shown in Explorer).

Is this a known bug or did I miss an Option in my script, which I coundn't found in the help files and forum?
The same behavior I could found with the official installer of NSIS 3.01.

Here my test script:

code:
!include "MUI2.nsh"

Name "Test Setup"

OutFile "Setup.exe"

InstallDir $PROGRAMFILES\test

InstallDirRegKey HKLM "Software\test" "Install_Dir"

RequestExecutionLevel admin

;--------------------------------

!insertmacro MUI_PAGE_WELCOME

!insertmacro MUI_PAGE_LICENSE license.txt

!insertmacro MUI_PAGE_DIRECTORY

!insertmacro MUI_PAGE_INSTFILES

!insertmacro MUI_PAGE_FINISH

!insertmacro MUI_LANGUAGE "English"  

;--------------------------------

Section "Files"

  SectionIn RO

  SetOutPath $INSTDIR

  File "install\ReadMe.txt"

  WriteRegStr HKLM SOFTWARE\test "Install_Dir" "$INSTDIR"

SectionEnd