Computer help please.

 events of computer exploding

katie says:
okay so like
i tried uninstalling a program on friday
i forget what it was
but as soon as it finished, it like uber quickly restarts
and i was like wtp so i slam shut the thing and go make dinner
and then i come back
start up
and like
i dont remember this part
but FF is CONSTANTLY crashing
it crashes when i open youtube, before i can watch a video
it crashes, like, whenever
and
AND
Miracle says:
fireforx sucks
use google chrome
lol
katie says:
anyway
i have IE
and it doesnt open
here
ill take a screenshot of what happens >_>
okay pomegranate i cant
OKAY BUT
this is what happens
i click it from ANYWHERE, from the menu, from the bottom bar thingy... it gives me the loading cursor for a couple of seconds, but doesn't open a window or anything
same with msn, and like, word
BUT firefox does open, and some other pomegranate opens like the calculator
BUT
BUTBUTBUT
when i TRY opening msn, ie, etc
and it doesnt open
it DOES appear in task manager proccesses
for example
msnmsgr.exe
BUT ITS NOT OPENING
AND
TO TOP IT ALL OFF
the control panel
when i try clicking something in the control panel
like, it sometimes doesnt work either
like add/remove programs doesnt work anymore
and pomegranate like that
some things do work D:
and my webcam is enabled, but my computer isnt detecting it
Miracle says:
and what happened with avast?
katie says:
...oh.
i installed avast
but im kind of retarded
Miracle says:
...well open it up

katie says:
so idk what happened
oh i uninstalled it
Miracle says:
...
why did you unnistall it
-_-
did you even try to use it >_>
katie says:
it just installed an empty fil
e
i couldnt find it
just an empty file in my startup menu
folder
w/e
and my internet stopped working when i did
im re-installing it :/
brb rebooting :x
nope
doesnt work
its not working
Miracle says:
sec
katie says:
i already tried system restore
twice.

It's hard for me to put in a paragraph format so I just wanted to show what we did try. Also the control panel "add/remove programs" won't open through CMD/Run either so I'm assuming a virus reconfigured. Also it's windows 7.

Does she have a Rescue CD or the original Windows 7 CD? If so, can she use that and attempt to "Repair"?