Blocked Application Access to Graphics Equipment During Gaming on NVIDIA GeForce GT 430

Hi, I have a problem with a fifth when I want to play a match and I'm already in the training arena, the game is jamming and a message is heard. Earlier in the notifications there was access to the graphics equipment application was blocked. The format was made, I have the latest drivers. I will add that before everything was ok. At low I had 40 fps
Equipment specification:
Graphics card - NVIDIA GeForce GT 430
Processor-AMD Athlon (tm) II X4 641 Quad-Core Processor
RAM-4GB
Operating system - Windows 10

You are new here but this does not release you from the obligation to provide the full specification of the equipment you have.

It fell out of my head, corrected.