How can I redownload previously purchased Linux Format magazine on Ubuntu Software Center?
67360
Reinstall commercial software (e.g. oil rush, steelstorm etc.)
30645
How to install (old) packages for Ubuntu 9.04?
49625
Under what license is Ubuntu? Can it be legally modified and distributed?
157525
How to delete old versions of same packages from a Local Repository?
25739
How do I reinstall Unity?
1104
How can I restore configuration files?
58815
Where can I download old releases of Drupal?
32200
How do I downgrade a package?
98807
How can I download a distribution?
119471
Can I archive with a Developer certificate, then re-sign it during submission with a Distribution certificate?
9723
How do I install software using the Ubuntu Software Center?
113710
Reinstall software-center in Ubuntu 16.04
156886
Where should I copy-paste-install software to?
42247
how do I go about removing all the language packs I don't need
34367
How do I reinstall Ubuntu?
48945
How to reinstall newest Linux Kernel?
8962
How to install multiple versions of the same software?