1. Have you downloaded any DLCs or Expansion Packs lately?
Nope, last one I bought was in June, but the game started acting up in spring, maybe late March, early April.
The expansion pack was bought through Origin.
2. How old is the Acer?
It was brand new when I bought it in July 2015, so 2 years old. I only use it for Sims, browsing internet and to store/edit pictures, so it's barely used.
3. Do you experience similar problems with other games? (Both EA and non-EA)
WoW seems to work fine, yet I haven't played it in ages. I tried it today to see if it works and it did.
It's the only other game I have installed.
4. When was the last time Windows 8 installed a major update?
I'm very sorry, I don't know what you mean by major update. I saw that the updates are market as "important" or "recommended" on my list and some out of both categories were installed on August 10th, some on July 13th and then there's one on June 28th. There are older ones as well.
Oh, and Windows is set to update any time it feels the need to.
Edit: Oh and it's Win 8.1, sorry!