Drivers For Notebooks Asus

Drivers Notebook Asus X551c Windows 7

Asus Drivers For Windows 7

I need help here ASAP!Everytime i try to update Nvidia on my Asus laptop, i always get the 'Nvidia Installer Failed' error. I've been searching for hours but nothing worked.Heres what i tried:1)Turning off anti-virus2)Update it, let it fail & manually update it through device manager (I always get 'Access is denied' message)3)Used DDU to uninstall both Nvidia & Intel drivers (Note: This f.ked up my laptop real bad! Thankfully i had a system restore point)4)Did sfc /scannow command on CMDStill non of them worked. Why is it hard to update an Nvidia driver?? Can you guys tell me what else should i do to fix it??