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Try running these commands in terminal:

 sudo su
 rm -rf ~/.config
 apt update
 apt install --reinstall ubuntu-desktop
 apt install unity
 reboot

Hope it helps

Also this whole long process can be avoided by a simple trick, a single command in terminal. Just type the following in terminal:

sudo rm -rf .compiz-l

That's it. Everything will be working fine now.

Try running these commands in terminal:

Method 1:

 sudo su
 apt update
 apt install --reinstall ubuntu-desktop
 apt install unity
 reboot

Method 2:

sudo su
rm -rf ~/.config

Method 3:

sudo rm -rf .compiz-1

Hope it works.

Try running these commands in terminal:

 sudo su
 rm -rf ~/.config
 apt update
 apt install --reinstall ubuntu-desktop
 apt install unity
 reboot

Hope it helps

Try running these commands in terminal:

 sudo su
 rm -rf ~/.config
 apt update
 apt install --reinstall ubuntu-desktop
 apt install unity
 reboot

Hope it helps

Also this whole long process can be avoided by a simple trick, a single command in terminal. Just type the following in terminal:

sudo rm -rf .compiz-l

That's it. Everything will be working fine now.

Try

 sudo su
 rm -rf ~/.config
 apt update
 apt install --reinstall ubuntu-desktop
 apt install unity
 reboot

Hope it helps

Try running these commands in terminal:

 sudo su
 rm -rf ~/.config
 apt update
 apt install --reinstall ubuntu-desktop
 apt install unity
 reboot

Hope it helps