Uninstall Ubuntu 13.10 and install Ubuntu 12.04

Question

My problem started with Win7. it was all good till it got stuck on the windows sign and never went past that. checked the hardware but everything is in order. so i installed my favourite OS which is Ubuntu (13.10 in this case) as a dual so i won't lose my Win7 files.

I have been using ubuntu for a month now and now i get this send report notifications at the startup. it got more and more and became really annoying that it started getting stuck at startup. Now i want to install Ubuntu 12.4 (hoping i wouldn't get those notifications), but i can't.

Here is the main issue. when i installed Ubuntu 13.10 i got a menu at the beginning to chose win7 or ubuntu (among other options). win7 doesn't work and ubuntu won't installed an older version of itself. i have the ubuntu system on USB but it appears i can't boot from it. i have tried all the functions while restarting. note that the i have chosen boot from USB as a primary. My Laptop is an Asus. If you have questions and suggestions i will be more than happy to answer and try.

Answer 1

Solution 1:

• You can disable the frequent appearance of the system crash/send report dialogue boxes.
  you need to edit /etc/default/apport

Graphical:

gksudo gedit /etc/default/apport

or

Command line:

sudo nano /etc/default/apport

Change enabled from "0" to a "1" so it looks like this:

enabled=1    

To turn it off make it:

enabled=0

to turn it off at boot, and then turn it off with a sudo service apport stop

Solution 2: Ubuntu don't restrict the installation of it's own older version. Make sure the pendrive is bootable. An easier way to make a bootable USB of Ubuntu is by using LinuxLive USB Creator
Then try searching the web for 'how to boot a pendrive' with specifying your Laptop model. Make a Youtube search too.