My PC is a Dell approximately 7-8 years old running Ubuntu 16.10
I have watched tutorials on youtube and tried to install the ubuntu restricted extras to help make the install a bit easier to no avail.
When i type in the command
sudo apt-get install ubuntu-restricted-extras
It tells me to enter my password then nothing happens.
Can you help - How to install some type of flash on my desktop computer?
In a terminal window you type (or copy & paste) the following command line
sudo apt-get install ubuntu-restricted-extras
Then there is a prompt to enter your password (the same one as you use to log in to your user account). This assumes that you have superuser privileges. Otherwise you are not allowed to install programs like this. I get the following prompt, and you get a prompt for your user ID.
[sudo] password for sudodus:
There is no echo (no stars, nothing) when you enter your password, but it is read anyway, so
Then things start to happen. (I have an up to date version of lubuntu-restricted-extras, so I get the following output.)
Reading package lists... Done
Building dependency tree
Reading state information... Done
lubuntu-restricted-extras is already the newest version (65).
Edit: After writing the answer, I saw your latest comment. I suggest that you try to repair your system according to the following link (the tips using command lines)
askubuntu.com/questions/885453/16-04-software-download-stuck-pending 'From the command line'
