As most Ubuntu users probably notice, the longer you use Ubuntu, the longer your boot times become. I have a few quick commands you can run to help with this issue:
1. Disable unnecessary services: Go to System –> Administration –> Services Shut down unnecessary services you do not use. ie:) Bluetooth Device Management (If you do not use BT), Braille Display Management, Printer Service (if you do not use a printer), etc.
2. Remove incomplete packages: Open Terminal and type…
sudo apt-get autoclean
3. Remove residual configuration files: Go to System –> Administration –> Synaptic Package Manager In the left column of the package manager, select Status, and then check for Not Installed (residual config packages). If this option appears, then you will have to right-click each package individually, and select Mark for Complete Removal. After selecting all the packages, click Apply.
4. Remove isolated libraries: Open Terminal and type…
sudo apt-get install deborphan
sudo deborphan
If it appears you have some isolated libraries, then use the following commands in Terminal to remove them:
sudo deborphan | xargs sudo apt-get -y remove – -purge
sudo apt-get autoremove
That is it. If you have any questions, please feel free to contact me.