Play SC2 basic version from DVD without Updates

Hello. I bought SC2 wings in 2013 and I want to install it on my PC. But I do not want to get the extra 30GB (allmost) update from Blizzard because I want to play the old SC2 wings of liberty. A very good reason is that the GPU will not handle this new updated version of SC2.
How can I do this? Play without getting the huge update?

you can not, sorry. on the other hand: i could look at your specs to tell you if you can upgrade. just post your dxdiag here and i will get back to you.