I did my Ubuntu installation offline from a USB I burned an ISO I received from a friend to. Before installation, I used the 'check installation' feature. There was one problem or error I think. I ignored it, due to being offline before my install.
Since Installation, Ubuntu often freezes forcing me to force shut down(Hold the power btton). This only happens when I'm installing or updating software.
I also frequently run into errors, that ask me to send an error report. ( I click on send, but not sure how many sent due to poor connection.)
My internet connection is generally bad.
Is there a way to run diagnostics see what exactly my ubuntu problem is, and attempt to fix it. I do not want to have to reinstall Ubuntu.
My distro is: 16.04 LTS