How can i keep my aunt from screwing up my computer?

Question

She the type that downloads 30+ Games from random sites at a time
It gets on my Nerves i don't like stuff being downloaded to MY Computer
Last time she came over it was so bad i had to Format
I'M 12 I DON'T HAVE THE TIME TO REMOVE VIRUSES
And Formatting takes to long to

Is there a way to Stop her From Downloading random BS to my PC, While I'm in bed One time she even downloaded WINFIXER
to quote ''Remove the virus's'' You might as well have a 3 Year Old With that thing.
I would create a virtual machine but i have yet to receive my Ubuntu CD
She Even Use's IE
She says the Firefox is a virus! WTF its the farest thing beside thats a Custom Build I MADE
Why On Earth Would I build a program to fudge up MY computer?

I Like to Keep a Very Specific List Of Software on my computer
that is

Gaim
Zonealarm Pro
Norton Anti-Virus
Winrar
Spybot S&D
Firefox
Thunder
Gimp
GTK Runtime Enviroment

THATS IT

But she has to go and screw Everything up

She has her own account But she chooses mine
MORE:

The Other Part

the reason i don't just get myself a password is
every time i do She has a live cd that '' Cracks '' It

Answer 1

Not much You can do while she has that CD. Try to use stealth.

I am nor sure whether You have admin privileges.

Can You set up a additional boot system on a partition that is normally hidden? Or use e. g. Bart's PE 1.) to build You a CD that makes Your maintenance chores easier ( like when she made a mess again You simply use Bart's PE to start to copy a system backup from CD/DVD or a hidden partition - that takes only minutes - maybe as long as a little snack while the PC software does its copy job - and not an almost complete day until all is back to normal ).

Another approach use nlite 2.) to create a preconditioned windows install CD that includes Your settings and programs.
It would not even install IE, MSN browser or Outlook express.

Else maybe use registry backups to reset Your own settings and/or use a CD backup of Your user profile with Your software.

IE: dangerous and disgusting :)
Try to get or create a firefox or k-meleon that has the same surface as IE, ( then de-install IE surface but not the Trident engine - that is used for some system jobs not only for IE ).
I have seen a firefox with IE skin with Torpark an usb security solution.

I got away with the k-meleon hack when my daughter was 14!
PPL do not look too close when they find all looks like normal.
Opera and K-Meleon start faster than IE - my daughter uses Opera now. She eventually complained about the "new IE" from Source Forge :-) So I "sold" her Opera.

Maybe try to sell Your aunt Opera? You can install Opera and apply the IE icon to Opera on Your account, configure the Opera surface a little ... It is speedier than IE (and even Firefox). Plus she will have to know where IE is located to start IE without icon.
Even knowing the location is insufficient when You manage to
remove all IE components except the Trident engine.

Another thing to try - that would also minimize the risk of using IE.
a little. Use a standalone IE 3.) or 4.). This is a way around the deep integration and preloading of IE ( extra benefit: she will have a slow starting IE :p ). That would even work if You have no Admin privileges and cannot remove IE. Your aunt would not look for IE as long as IE starts :-).

A standalone IE is also a solution for her own account. Just having a CD does help but does not replace knowledge.

Hope my post gave You some more ideas.
Ubuntu? 5.) several free download - if You have dsl.

Answer 2

I would recommend that you point her towards http://www.realarcade.com and ask her to only play the games and download them from there. These are garaunteed virus free. She has to understand that the computer is yours, and she is only "borrowing" it's use. If that does not work, your parents should be able to explain it to her in a more firm and understanding way. Hope this helps