What happens when you try to patch? Do you get an error message?
Also, what other expansions and stuff packs do you have installed and what is the latest patch you were able to install?
If you open your launcher, you see a series of little icons on the bottom. The first one is for the base game. If you hover over it, you'll see a number.
What is that number ?
It should start with 1.xx
1.36 would be the newest update.
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