I have problem with my Acer Aspire E1-431 OS Windows 8.1. The problem came when I installed an update with the name "Update For Windows 8.1 (KB2933809). After installed this update there was notification that asked to restart system. I restarted it and update was installing. Everything running well. But when the system was restarted, appeared the blue screen that said "Critical_Process_Died". Then I tried to restore my system and tried to did it again, but it's same. The blue screen was appeared again.

Please help me to fix this problem.

Thank you so much