Persistent Non Intrusive NAS SMB Drive Mapping Script

map-nas.bat

@echo off
set "DRIVE=Z:"
set "SHARE=\\10.10.10.10\media"
set "USER=USER"
set "PASS=PASSWORD"

rem If Z: exists (mapped or local), do not touch it
if exist %DRIVE%\ (
  exit /b 0
)

rem Map only if unused
net use %DRIVE% "%SHARE%" /user:%USER% "%PASS%" /persistent:yes >nul 2>&1
exit /b %errorlevel%

1. Save the script

Save your file as C:\Scripts\map-nas.bat

@echo off
if exist Z:\ exit /b
net use Z: \\10.10.10.10\media /user:USER PASSWORD /persistent:yes

---

2. Open Task Scheduler

1. Press Start
2. Search Task Scheduler
3. Open it

---

3. Create the task

1. Click Create Basic Task
2. Name it: Map NAS
3. Click Next

---

4. Trigger

Select:

When I log on

Click Next

---

5. Action

Select:

Start a program

Click Next

Program/script:

C:\Scripts\map-nas.bat

Click Next → Finish

---

✅ Done.
Now when the user logs in, it runs the script and only maps Z: if it doesn't already exist.