Home › Forums › Help & Support › Help & Support › C3 +win7 x64 unplayable › Reply To: C3 +win7 x64 unplayable
September 24, 2015 at 10:36 pm EEST
#3107
![](https://l2oldskool.org/wp-content/uploads/2014/06/4856526+_aece6f6b0ed76e3dd5f0c0ff844e6e8b.png)
Administrator
Yes, I fully updated client. Yes, I am reffering to alt+tab. Critical error often appears when I switch to another application or lost focus on l2.exe window.
Just focus the chat window (press Enter) before alt-tab, and the game won’t crash.