Tutorial for Desktop enviroment in WSL2 (Arch distro)

The tutorial will tell you how to run desktop environment inside Windows Subsystem for Linux.
And you don't need to build a developement environment with virtual machines any more.

Prerequisites

Please note that you'll need to be running Windows 10 Build 19041 or higher.
You will also need to have (WSL2)[https://docs.microsoft.com/en-us/windows/wsl/install-win10#update-to-wsl-2] installed.
To install the Arch distro follow (these)[https://github.com/yuk7/ArchWSL] instructions.

This tutorial should also work for other WSL distro's if u know linux a bit.

Set Arch to be backed by WSL 2

In PowerShell run:

wsl --set-version Arch 2

If you don't use Arch, make sure to replace Arch with the actual name of your distro. (You can find these with the command: wsl -l).

Additionally, run the command below to make WSL 2 your default architecture:

wsl --set-default-version 2

Install VcXsrv

Install the lastest version of VcXsrv.

Upgrade Arch

sudo yay -Syu
sudo pacman -Syu

Specify the display server

Add bellow code to ~/.bashrc.

export DISPLAY=`grep -oP "(?<=nameserver ).+" /etc/resolv.conf`:0.0
export LIBGL_ALWAYS_INDIRECT=1

Then don't forget to run source ~/.bashrc.

Couple quick changes

Edit /usr/share/dbus-1/session.conf with sudo permissions & replace following lines:

<listen>unix:tmpdir=/tmp</listen>

with

<listen>tcp:host=localhost, port=0</listen>

and replace

<auth>EXTERNAL</auth>

with

<auth>ANONYMOUS</auth>
<allow_anonymous/>

Edit windows firewall

Firewall & network protection -> Allow an app through the firewall ->
Change settings -> Allow another app -> Path: 'C:\Program Files\VcXsrv\vcxsrv.exe'

Startup

Open XLaunch, choose "One large window" or "One large window without titlebar", set the "display number" to 0 and click "Next.
Choose "Start no client" and click "Next".
Check "Disable access control" and click "Next".
Click "Finish" to launch display server.

After this start xface4 in Arch: startxfce4

Enjoy! :)

For further debugging if you encounter problems see (this)[microsoft/WSL#4106] thread.
OG thread: microsoft/WSL#637