# ParaView not launching (instance does not start)
**URL:** https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750
**Category:** ParaView Support
**Created:** [January 20, 2024, 1:10pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750 "2024-01-20T13:10:14Z")
**Posts on this page:** 11
**Page:** 1
### Author:  [@MakelA](https://discourse.paraview.org/u/MakelA)
#### Post date: [January 20, 2024, 1:10pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750/1 "2024-01-20T13:10:14Z")
Hi,
ParaView does not open a window, but runs as a background process.
Tried different versions of the program, from old to new.
Tried various compatibility settings.
Tried installing older graphics drivers.
Nothing helped.
It opened before, but then I didn’t use the program for several months. Now there’s a problem.
I couldn’t find a solution, maybe I didn’t search well. I apologize in advance.
My system:
CPU i7-7800X
GPU 4080
Win10
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### Author:  [@ben.boeckel](https://discourse.paraview.org/u/ben.boeckel)
#### Post date: [February 7, 2024, 1:46pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750/2 "2024-02-07T13:46:39Z")
> [@MakelA](#):
>
> Tried different versions of the program, from old to new.
You mean the binary packages from [the download page](https://www.paraview.org/download/)? Is this the `.zip` or `.msi`/`.exe` package?
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### Author:  [@MakelA](https://discourse.paraview.org/u/MakelA)
#### Post date: [February 7, 2024, 2:27pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750/3 "2024-02-07T14:27:02Z")
> [@ben.boeckel](#):
>
> You mean the binary packages from [the download page](https://www.paraview.org/download/)? Is this the `.zip` or `.msi` /`.exe` package
I don’t mean the installer file, there are no problems with the installation. There is a problem that the installed program isn’t launch.
Even if it’s installed on the USB flash drive.
I can use it on a virtual machine, but it’s necessary to find out why it does not work for the main OS.
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### Author:  [@ben.boeckel](https://discourse.paraview.org/u/ben.boeckel)
#### Post date: [February 7, 2024, 3:26pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750/4 "2024-02-07T15:26:14Z")
Sorry, I meant how did you get ParaView onto the machine: via the `.msi`/`.exe` installer or by extracting the `.zip`?
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### Author:  [@MakelA](https://discourse.paraview.org/u/MakelA)
#### Post date: [February 7, 2024, 4:09pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750/5 "2024-02-07T16:09:17Z")
I tried both options. It turns out the same.
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### Author:  [@ben.boeckel](https://discourse.paraview.org/u/ben.boeckel)
#### Post date: [February 7, 2024, 5:06pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750/6 "2024-02-07T17:06:45Z")
Interesting. If you launch from a `cmd` window, is there any output on the terminal? Does `pvpython` work?
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### Author:  [@MakelA](https://discourse.paraview.org/u/MakelA)
#### Post date: [February 7, 2024, 5:34pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750/7 "2024-02-07T17:34:23Z")
This is what it looks like through the terminal
and nothing happens
pvpython can start
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### Author:  [@ben.boeckel](https://discourse.paraview.org/u/ben.boeckel)
#### Post date: [February 7, 2024, 6:01pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750/8 "2024-02-07T18:01:10Z")
what if you just run `paraview.exe` directly without `start`?
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### Author:  [@MakelA](https://discourse.paraview.org/u/MakelA)
#### Post date: [February 7, 2024, 6:32pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750/9 "2024-02-07T18:32:17Z")
Likewise nothing happens
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### Author:  [@aron.helser](https://discourse.paraview.org/u/aron.helser)
#### Post date: [February 7, 2024, 7:17pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750/10 "2024-02-07T19:17:24Z")
Have you had paraview installed before? If you start from the cmd line, “paraview.exe --dr” does it start? (This ignores the settings file.)
If so, you can use the preferences menu to reset to the default settings, and you should be able to start.
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### Author:  [@MakelA](https://discourse.paraview.org/u/MakelA)
#### Post date: [February 7, 2024, 7:25pm UTC](https://discourse.paraview.org/t/paraview-not-launching-instance-does-not-start/13750/11 "2024-02-07T19:25:45Z")
It was installed and stopped running. Was completely removed.
Re-installation didn’t help.
With --dr nothing changes.