my computer keeps crashing

Have you changed anything recently that you think may be related to these crashes? For example recent update or installed new software.

If yes what has changed.

If you can't think of anything I suggest you report a bug see here
https://wiki.ubuntu.com/DebuggingProgramCrash

none of those reports come up, it just crashes, and have to force off and restart to use again,

1. Just to double check open a terminal (CTRL+ALT+T)

What's the output of the following commands; copy and paste to avoid typing errors.

----------------------------------------------------
lsb_release -a; uname -a; ls -la /var/crash
----------------------------------------------------

2. You can report a bug even if there is no crash report

if firefox has crashed in a terminal enter

----------------------------------------------------
ubuntu-bug firefox
----------------------------------------------------

if chrome has crashed in a terminal enter

----------------------------------------------------
ubuntu-bug chrome
----------------------------------------------------

Provide as much detail as you can. What you were doing when it crashed, website being viewed etc.

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.1 LTS
Release: 12.04
Codename: precise
Linux conor-Presario-V4000-EK946EA-ABU 3.2.0-33-generic-pae #52-Ubuntu SMP Thu Oct 18 16:39:21 UTC 2012 i686 i686 i386 GNU/Linux
total 8
drwxrwsrwt 2 root whoopsie 4096 Aug 17 23:08 .
drwxr-xr-x 13 root root 4096 Nov 22 00:29

main pages browsed face book , gmail, you tube, movie2k, couchtuner,
system freezes , have to force off power because of no response, when i have gottne the computer running normaly again, it might not happen again for a while or happen within minutes,

think ive found the problem, google chrome , how do i remove it, it doesnt show up in installed programmes, it there a way to remove using terminal?

ubuntu-bug chrome
package does not exist

apport-bug chrome
package does not exist

how did you install it? Its not installed by default on 12.04. Its not in the software centre either are you sure you do not mean chromium-browser which isn't installed by default and is in the software centre.

Open a terminal and give us the output of: (one line at a time)

dpkg -l | grep 'chrom'
sudo apt-cache policy chromium-browser
sudo apt-cache policy chrome

i installed it throught a .deb file download
it is chrome and not chromium
conor@conor-Presario-V4000-EK946EA-ABU:~$ dpkg -l | grep 'chrom'
ii google-chrome-stable 23.0.1271.91-r167501 The web browser from Google
ii xserver-xorg-video-openchrome 1:0.2.904+svn1050-1 X.Org X server -- VIA display driver

conor@conor-Presario-V4000-EK946EA-ABU:~$ sudo apt-cache policy chromium-browser[sudo] password for conor:
chromium-browser:
  Installed: (none)
  Candidate: 20.0.1132.47~r144678-0ubuntu0.12.04.1
  Version table:
     20.0.1132.47~r144678-0ubuntu0.12.04.1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ precise-updates/universe i386 Packages
     18.0.1025.168~r134367-0ubuntu0.12.04.1 0
        500 http://security.ubuntu.com/ubuntu/ precise-security/universe i386 Packages
     18.0.1025.151~r130497-0ubuntu1 0
        500 http://ie.archive.ubuntu.com/ubuntu/ precise/universe i386 Packages
conor@conor-Presario-V4000-EK946EA-ABU:~$

conor@conor-Presario-V4000-EK946EA-ABU:~$ sudo apt-cache policy chrome
N: Unable to locate package chrome
conor@conor-Presario-V4000-EK946EA-ABU:~$

This should do it

sudo apt-get purge google-chrome-stable

and then

sudo apt-get autoremove

thank you
you are a genius

I wouldn't go that far. Glad to have helped