Norton Security and Blue Scrren

Hello,
i have some problem with Norton Seciruty Premium (22.8.0.50) installation on my PC (Windows 7 Home basic). The installation was stopped by "Blue screen":
Signature:
Name:    BlueScreen
 OS version:    6.1.7601.2.1.0.768.2
  Language:    1049

Additional info:
  BCCode:    50
  BCP1:    FFFFF881AA568BA0
  BCP2:    0000000000000000
  BCP3:    FFFFF880058D9C75
  BCP4:    0000000000000005
  OS Version:    6_1_7601
  Service Pack:    1_0
  Product:    768_1

I've used Norton Power Eraser and Norton Removal Tool, but nothing changed.
Can anybody help me?