XCOPY still asking (F = file, D = directory) confirmation

The /I switch (not /F as you mentioned in your question) prevents xcopy from asking whether the destination is a file or a directory only if multiple source files are given, so if the source is a directory, or if wildcards ? or * are used. If the destination already exists, such prompt does never appear.

There are the following scenarios (depending on the provided values of %source% and %target%):

• a single source file, the destination is a file:

  the /I switch is useless, so you need to pipe F into the xcopy command line:

  echo F|xcopy /S /Q /Y /F "%source%" "%target%"
  

  provided that the /Y switch is given (to force overwriting), you could also create the target file in advance (empty file):

  >> "%target%" rem/
  xcopy /S /Q /Y /F "%source%" "%target%"
  

• a single source file, the destination is a directory:

  the /I switch is useless too; you can pipe D into the xcopy command line:

  echo D|xcopy /S /Q /Y /F "%source%" "%target%"
  

  or you can simply append a \ to the destination:

  xcopy /S /Q /Y /F "%source%" "%target%\"
  

  although this causes trouble when %target% specifies the current directory of a drive like D: for instance, because D: means the current directory of this drive whereas D:\ means the root directory of it;

  or you create the destination directory in advance:

  2> nul mkdir "%target%"
  xcopy /S /Q /Y /F "%source%" "%target%"
  

  the 2> nul portion suppresses the error message in case the directory already exists;

• multiple source files, the destination is a file:

  this is usually a senseless situation, because you tell xcopy to copy each source file to the same destination file, thus attempting to overwrite it;

• multiple source files, the destination is a directory:

  the /I switch makes sense here:

  xcopy /S /I /Q /Y /F "%source%" "%target%"
  

  the pipe option also works here:

  echo D|xcopy /S /Q /Y /F "%source%" "%target%"
  

  so does appending a \ to the destination (regarding the limitation as mentioned above):

  xcopy /S /Q /Y /F "%source%" "%target%\"
  

  or you create the destination directory in advance:

  2> nul mkdir "%target%"
  xcopy /S /Q /Y /F "%source%" "%target%"
  

Conclusion

The most flexible and secure solution is to pipe the desired selection (F or D) into the xcopy command line. (Note that the query is locale-dependent.)

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Supplement

There are some minor issues in your code fragment I want to mention here:

• you should generally use the \ as a path separator as this is the Windows standard character for that purpose (although / works too in most cases);
• there is -1111 appended to your second net use command line; if this constitutes the password for the resource, it should be moved before the /USER option; otherwise just remove it;
• your set command lines introduce problems with some special characters (like &, ^, (, )); to avoid such, state set "source=%~1" and set "target=p:/%~2"; the ~ removes potential surrounding "" from the arguments (which are required if they contain SPACE, ,, ;, =);

Here is the code with the all of the above things reworked:

net use P: /DELETE
rem supposing `-1111` constitutes the password for the resource:
net use P: "\\200clan\F_Drive" -1111 /USER:adm /PERSISTENT:NO

set "source=%~1"
set "target=P:\%~2"

echo "%source%" "%target%"

rem supposing the destination is a directory:
echo D|xcopy /S /I /Q /Y /F "%source%" "%target%"


rem actually you do not need any interim variables:
REM echo D|xcopy /S /I /Q /Y /F "%~1" "P:\%~2"