Windows install wsl and set default wsl 2

Step 1:
Open the below link and READ IT!

https://learn.microsoft.com/en-za/windows/wsl/install

1: Open PowerShell and Start the install process
wsl --install

2: Result shows you available distros: 
Ubuntu             Ubuntu
Debian             Debian GNU/Linux
kali-linux         Kali Linux Rolling
SLES-12            SUSE Linux Enterprise Server v12
SLES-15            SUSE Linux Enterprise Server v15
Ubuntu-18.04       Ubuntu 18.04 LTS
Ubuntu-20.04       Ubuntu 20.04 LTS
OracleLinux_8_5    Oracle Linux 8.5
OracleLinux_7_9    Oracle Linux 7.9

3: Install your selected distro. In my case I am choosing Ubuntu.
wsl --install Ubuntu

4: Wait for the install to finish.
Enter username and password in the ubuntu termainal and proceed.

5: Switch back to PowerShell and Check that your wsl version. 
wsl -l -v

6: Run the below command.
sudo apt update && sudo apt upgrade

7: Set default wsl version to version 2
wsl --set-default-version 2

8: If you manually installed WSL prior to the wsl --install command being available, you may also need to enable the virtual machine optional component used by WSL 2 and install the kernel package if you haven't already done so.
--
https://learn.microsoft.com/en-za/windows/wsl/install-manual#step-3---enable-virtual-machine-feature

Ubuntu Add Virtual Ram

free -m
mkdir -p /var/swapmemory
cd /var/swapmemory
#Here, 1M * 2000 ~= 2GB of swap memory
dd if=/dev/zero of=swapfile bs=1M count=2000
mkswap swapfile
swapon swapfile
chmod 600 swapfile
echo "/var/swapmemory/swapfile none swap sw 0 0" >> /etc/fstab
#cat /proc/meminfo
free -m

Install Nemo File Manager on Ubuntu

Install Nemo File Manager On Ubuntu 17.04 Systems

Install Nemo on Ubuntu

To install Nemo in Ubuntu Systems, run the following command to add the Nemo WebUpd8 PPA:

sudo add-apt-repository ppa:webupd8team/nemo
sudo apt-get update
sudo apt-get install nemo nemo-fileroller

Please note that if you already have an older Nemo version installed, upgrade to the latest Nemo version, Run the following command to do so:

sudo apt-get update
sudo apt-get upgrade
killall nemo

Once installed, open the Nemo file manager from the Ubuntu Dash or menu. Please note that you won’t see Nemo icon, but if you search for “Nemo”, the “Files” option shows up. Click on it to open Nemo.