# Preventing Paraview Visualizer popup paraview windows on startup?
**URL:** https://discourse.paraview.org/t/preventing-paraview-visualizer-popup-paraview-windows-on-startup/15649
**Category:** Web Support
**Created:** [October 28, 2024, 7:42am UTC](https://discourse.paraview.org/t/preventing-paraview-visualizer-popup-paraview-windows-on-startup/15649 "2024-10-28T07:42:58Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@vavo01](https://discourse.paraview.org/u/vavo01)
#### Post date: [October 28, 2024, 7:42am UTC](https://discourse.paraview.org/t/preventing-paraview-visualizer-popup-paraview-windows-on-startup/15649/1 "2024-10-28T07:42:58Z")
I launch paraview-visualizer in a conda environment with
```auto
python -m paraview.apps.trame --trame-app pv_visualizer.app --port 1234 --data .
```
Visualizer itself works fine. But at start and then when loading a state file paraview windows popup. How can I avoid it?
@jourdain
---
### Author:  [@jourdain](https://discourse.paraview.org/u/jourdain)
#### Post date: [October 28, 2024, 5:55pm UTC](https://discourse.paraview.org/t/preventing-paraview-visualizer-popup-paraview-windows-on-startup/15649/2 "2024-10-28T17:55:21Z")
There is a `--force-offscreen-rendering` argument you can use. If I have a typo in what I wrote, you can use `--help` to find what you are looking for.
---
### Author:  [@vavo01](https://discourse.paraview.org/u/vavo01)
#### Post date: [October 29, 2024, 4:37am UTC](https://discourse.paraview.org/t/preventing-paraview-visualizer-popup-paraview-windows-on-startup/15649/3 "2024-10-29T04:37:03Z")
> [@jourdain](#):
>
> `--force-offscreen-rendering`
Hello Sebastian, thank you for the hint.
But if I pass `--help` argument, I don’t see `--force-offscreen-rendering` or something similar.
```auto
python -m paraview.simple --trame-app pv_visualizer.app --help
Kitware trame
options:
-h, --help show this help message and exit
--server Prevent your browser from opening at startup
--banner Print trame banner
--app Use OS built-in browser
--no-http Do not serve anything over http
--authKeyFile AUTHKEYFILE
Path to a File that contains the Authentication key for clients to connect to the WebSocket. This takes precedence over '-a, --authKey' from wslink.
--hot-reload Automatically reload state/controller callback functions for every function call. This allows live editing of the functions. Functions located in the site-packages directories are skipped.
--trame-args TRAME_ARGS
If specified, trame will ignore all other arguments, and only the contents of the `--trame-args` will be used. For example: `--trame-args="-p 8081 --server"`. Alternatively, the environment variable
`TRAME_ARGS` may be set instead.
--debug log debugging messages to stdout
--nosignalhandlers Prevent installation of signal handlers so server can be started inside a thread.
--host HOST the interface for the web-server to listen on (default: 0.0.0.0)
-p PORT, --port PORT port number for the web-server to listen on (default: 8080)
--timeout TIMEOUT timeout for reaping process on idle in seconds (default: 300s, 0 to disable)
--content CONTENT root for web-pages to serve (default: none)
--authKey AUTHKEY Authentication key for clients to connect to the WebSocket.
--ws-endpoint WS Specify WebSocket endpoint. (e.g. foo/bar/ws, Default: ws)
--no-ws-endpoint If provided, disables the websocket endpoint
--fs-endpoints FSENDPOINTS
add another fs location to a specific endpoint (i.e: data=/Users/seb/Download|images=/Users/seb/Pictures)
--reverse-url REVERSE_URL
Make the server act as a client to connect to a ws relay
--ssl SSL add a tuple file [certificate, key] (i.e: --ssl 'certificate,key') or adhoc string to generate temporary certificate (i.e: --ssl 'adhoc')
--data DATA Path to browse
--plugins PLUGINS List of distributed plugins to load
```
---
### Author:  [@jourdain](https://discourse.paraview.org/u/jourdain)
#### Post date: [October 29, 2024, 2:25pm UTC](https://discourse.paraview.org/t/preventing-paraview-visualizer-popup-paraview-windows-on-startup/15649/4 "2024-10-29T14:25:01Z")
Those are `pvpython` options not regular python. Sorry I skipped `conda environment`. In the code, you could make the view offscreen, but that would require code change. With conda, you don’t have much other options unfortunately.
BTW, which OS?
---
### Author:  [@vavo01](https://discourse.paraview.org/u/vavo01)
#### Post date: [October 29, 2024, 2:28pm UTC](https://discourse.paraview.org/t/preventing-paraview-visualizer-popup-paraview-windows-on-startup/15649/5 "2024-10-29T14:28:38Z")
I use Win11
---
### Author:  [@jourdain](https://discourse.paraview.org/u/jourdain)
#### Post date: [October 29, 2024, 4:28pm UTC](https://discourse.paraview.org/t/preventing-paraview-visualizer-popup-paraview-windows-on-startup/15649/6 "2024-10-29T16:28:01Z")
Unfortunately for you, the only way is to use ParaView/pvpython with a venv.
---
### Author:  [@vavo01](https://discourse.paraview.org/u/vavo01)
#### Post date: [February 24, 2025, 1:05pm UTC](https://discourse.paraview.org/t/preventing-paraview-visualizer-popup-paraview-windows-on-startup/15649/8 "2025-02-24T13:05:33Z")
@jourdain
I’ve finally found a very simple solution without any need of code changing:
The conda environment with paraview site-package contains the `pvpython.exe` in `Library\bin` directory. It has all options including `--force-offscreen-rendering`. So there is no need of full paraview installtion to use `pvpython.exe`.