Help gan, ane punya laptop Lenovo z475 (a6 3400m / 4gb / 750gb). Ane baru downgrade dari windows 8 ke windows 7 home premium 32 bit.. Setelah downgrade, vga otomatis keinstall "standard vga graphic adpater", bgitu ane update driver ke HD 6520g selalu fail:


Ada yang tau cara install vganya?? Help pls.. Gambarnya jelek amat standard vga


Spec: LINK
General
Processor AMD Fusion
Motherboard chipset AMD Hudson River A60M
Processor number A6 3400M
Processor speed 1.4GHz

Display
Radeon dual Graphic:
- Graphics hardware AMD Radeon HD 6520G
- ??? (kemungkinan HD 7450m)
LCD technology LED backlit
Screen resolution (max) 1,366 x 768
Diagonal screen size 14 inch

Software
Operating system Win 7 Home Premium 32bit

Memory/Storage
RAM 6GB
Hard drive 750 GB