How do I know which software downloads to trust?
18875
Which Ubuntu repositories are totally safe and free from malware?
85261
How do I find out which paths my (La)TeX installation checks looking for packages (on a Linux system)?
105208
How can I check if a PPA has packages for another Ubuntu version?
89366
Which package version am I using?
92091
Which default programs can be safely uninstalled?
87847
What are the differences between Ubuntu download servers
75915
Where can I find a complete list of packages that I have installed after initial installation?
88531
Is there a tool/website to compare package status in different Linux distributions?
22506
Is there a way to find out whether an updated program/package lands in the official Ubuntu release repositories?
148424
How can I get the product keys for software on my PC?
98807
How can I download a distribution?
70138
How can I find out what modifications a program’s installer makes?
14777
How to check if a specific Windows security update is installed?
134143
How do I know what packages I need to install?
80674
How can I determine if a used game is pirated?
113101
What is the danger of running untrusted software as a normal user
93175
How do I find out if my computer's hardware is compatible with Ubuntu?