Error Extracting native files


Hey guys,i have a problem,i can't get FTB Minecraft to launch,i had the main title open for about 3 hours,cause i was taking a break after playing for 6 straight hours,and now it won't launch.PLease be kind and give easy answers,as im not a pc guy,just a Minecraft player.


I got it to launch,i had to wait till the old window opened back up,then it wouldn't respond so i used Windows Task Manager to close it,now i got it to relaunch.