Pretty sure someone already said it was safe to update. I just did since U.S. got the update as well. Still works. I'm just glad I can finally play Warrior's Way again now that they fixed the bug.
Acer Laptops suck IMO. Cheaper parts, don't last as long. I've never known anyone who was happy with their purchase after 6 months. Just like emachines, you get what you pay for .