Gfilui

I installed Ubuntu recently , I tried to update it but it responses that it is Failed , I couldn't download anything from the software center, I can't even install any plug-ins or chrome or even vlc !!

Whenever I give sudo apt-get update, this comes

Ign:94 http://us.archive.ubuntu.com/ubuntu zesty-backports/universe Translation-en_US
Ign:95 http//us.archive.ubuntu.com/ubuntu zesty-backports/universe Translation-en
Ign:96 htt://us.archive.ubuntu.com/ubuntu zesty-backports/universe all DEP-11 Metadata
Ign:97 htp://us.archive.ubuntu.com/ubuntu zesty-backports/universe amd64 DEP-11 Metadata
Ign:98 htp://us.archive.ubuntu.com/ubuntu zesty-backports/universe DEP-11 64x64 Icons
Ign:99 ttp://us.archive.ubuntu.com/ubuntu zesty-backports/multiverse amd64 Packages
Ign:100 ttp://us.archive.ubuntu.com/ubuntu zesty-backports/multiverse all Packages
Ign:101 tp://us.archive.ubuntu.com/ubuntu zesty-backports/multiverse i386 Packages
Ign:102 tp://us.archive.ubuntu.com/ubuntu zesty-backports/multiverse Translation-en_US
Ign:103 ttp://us.archive.ubuntu.com/ubuntu zesty-backports/multiverse Translation-en
Ign:104 tp://us.archive.ubuntu.com/ubuntu zesty-backports/multiverse all DEP-11 Metadata
Ign:105 ttp://us.archive.ubuntu.com/ubuntu zesty-backports/multiverse amd64 DEP-11 Metadata
Ign:106 ttp://us.archive.ubuntu.com/ubuntu zesty-backports/multiverse DEP-11 64x64 Icons
Err:11 htp://us.archive.ubuntu.com/ubuntu zesty/main i386 Packages
 404 Not Found [IP: 91.189.91.26 80]
Ign:12 htp://us.archive.ubuntu.com/ubuntu zesty/main all Packages
Ign:13 htp://us.archive.ubuntu.com/ubuntu zesty/main amd64 Packages
Ign:14 htp://us.archive.ubuntu.com/ubuntu zesty/main Translation-en
Ign:15 htp://us.archive.ubuntu.com/ubuntu zesty/main Translation-en_US
Ign:16 htp://us.archive.ubuntu.com/ubuntu zesty/main all DEP-11 Metadata
Ign:17 htp://us.archive.ubuntu.com/ubuntu zesty/main amd64 DEP-11 Metadata
Ign:18 htp://us.archive.ubuntu.com/ubuntu zesty/main DEP-11 64x64 Icons
Ign:19 htp://us.archive.ubuntu.com/ubuntu zesty/restricted amd64 Packages
Ign:20 htp://us.archive.ubuntu.com/ubuntu zesty/restricted all Packages
Ign:21 htp://us.archive.ubuntu.com/ubuntu zesty/restricted i386 Packages
Ign:43 htp://us.archive.ubuntu.com/ubuntu zesty-updates/main all Packages
Err:44 htp://us.archive.ubuntu.com/ubuntu zesty-updates/main i386 Packages
 404 Not Found [IP: 91.189.91.26 80]
Ign:45 htp://us.archive.ubuntu.com/ubuntu zesty-updates/main amd64 Packages
Ign:46 htp://us.archive.ubuntu.com/ubuntu zesty-updates/main Translation-en
Ign:47 htp://us.archive.ubuntu.com/ubuntu zesty-updates/main Translation-en_US
Ign:48 htp://us.archive.ubuntu.com/ubuntu zesty-updates/main all DEP-11 Metadata
Ign:49 htp://us.archive.ubuntu.com/ubuntu zesty-updates/main amd64 DEP-11 Metadata
Ign:50 htp://us.archive.ubuntu.com/ubuntu zesty-updates/main DEP-11 64x64 Icons
Ign:51 htp://us.archive.ubuntu.com/ubuntu zesty-updates/restricted all Packages
Ign:52 htp://us.archive.ubuntu.com/ubuntu zesty-updates/restricted amd64 Packages
Ign:53 htp://us.archive.ubuntu.com/ubuntu zesty-updates/restricted i386 Packages
Ign:54 htp://us.archive.ubuntu.com/ubuntu zesty-updates/restricted Translation-en
Err:75 htp://us.archive.ubuntu.com/ubuntu zesty-backports/main amd64 Packages
 404 Not Found [IP: 91.189.91.26 80]
Ign:76 htp://us.archive.ubuntu.com/ubuntu zesty-backports/main all Packages
Ign:77 htp://us.archive.ubuntu.com/ubuntu zesty-backports/main i386 Packages
Ign:78 htp://us.archive.ubuntu.com/ubuntu zesty-backports/main Translation-en_US
Ign:79 htp://us.archive.ubuntu.com/ubuntu zesty-backports/main Translation-en
Ign:80 htp://us.archive.ubuntu.com/ubuntu zesty-backports/main amd64 DEP-11 Metadata
Ign:81 htp://us.archive.ubuntu.com/ubuntu zesty-backports/main all DEP-11 Metadata
Ign:82 htp://us.archive.ubuntu.com/ubuntu zesty-backports/main DEP-11 64x64 Icons
Ign:83 htp://us.archive.ubuntu.com/ubuntu zesty-backports/restricted i386 Packages
Ign:84 htp://us.archive.ubuntu.com/ubuntu zesty-backports/restricted amd64 Packages
Ign:85 htp://us.archive.ubuntu.com/ubuntu zesty-backports/restricted all Packages
Reading package lists... Done
E: The repository 'htp://security.ubuntu.com/ubuntu zesty-security Release' does no longer have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'htp://us.archive.ubuntu.com/ubuntu zesty Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'htp://us.archive.ubuntu.com/ubuntu zesty-updates Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'htp://us.archive.ubuntu.com/ubuntu zesty-backports Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.

As shown above that is what I get and no downloads are initiated, I cant even watch videos in this, since it is asking me to download flash-plugins but I can't..

You're using an old and unsupported Ubuntu version.

1. Upgrade to Ubuntu 17.10 by changing every zesty instances to artful at the /etc/apt/sources.list with root permission,




2. then being root use apt update && apt upgrade && apt full-upgrade to upgrade to Ubuntu 17.10

Enjoy !!