Skip to the content- Try configuring unconfigured packages:
sudo dpkg --configure -a
- Update the contents of the repositories
sudo apt-get update
- Try to fix missing dependencies:
sudo apt-get -f install
- Update all packages with new versions available:
sudo apt-get full-upgrade
- Reinstall Ubuntu desktop:
sudo apt-get install --reinstall ubuntu-desktop
- Remove unnecessary packages:
sudo apt-get autoremove
- Delete downloaded packages already installed:
sudo apt-get clean
- Reboot the system to see if the issue was resolved:
sudo reboot
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