windows encountered a problem installing the driver software for your device (access denied)

Hello

iam using Hp Pavilion G6 ,,,on Windows 7 homebasic Sp1

i can not update or install any driver due to this (access denied) problem

my usb storage on my phone was not working with my pc so i uninstalled the driver then tried installing it again and i found this problem

my phone (Htc Sensation) (Mtp Device driver)

i tried another phone (samsung wave1) i uninstalled the driver as well and now i cannot also install the samsung usb composite driver (same error message)

so ,, i Tried Gaining my Access rights

i became owner and administrator of my pc

i gained access to

C:\Windows\System32\DriverStore\FileRepository

and got special access (full control)

but still ,, i can not install the drivers ,, even manually

i dont have any system restore points unfortunately ,,, i only have Hp Recovery ,,

i also tried installing driver on safemode (minimal with network)

same error

i ran full system scan with Microsoft security essentials (fully updated) ,, no threats

what can i do ??!

_

thank you for reading my question :)

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