Problem with updating Y480 drivers [ Edited ]

[goth_bacon]

I have been trying to update my graphics drivers for the Y480, both the integrated Intel chip and the dedicated Nvidia GeForce GT 640M LE.  I went to the Lenovo site for the drivers and downloaded the appropriate drivers, but I can't install them.  When I try to install the Nvidia driver, I get this error:

"nVIDIA GL1(QS/PS): Can not find setup file!"

When I try to install the Intel driver, I get this error:

"The contents of this file cannot be unpacked. The executable you are attempting to run has been corrupted. Please obtain another copy of the file, verify its integrity, and try again."

I've tried downloading the Intel driver installer twice and I got the same error both times.  Anyone have the same problem and/or know how to fix it?  Thank you.

Edit: I got around the Nvidia driver error by going to the "drivers" folder in C: drive, finding the corresponding driver folder, and running the "setup.exe".  I still don't know how to install the Intel driver.

[ExJamJus]

Goth,

I downloaded the Intel Driver for Y480 and execute the installer ... works fine ... did not get the error you mentioned above.

Try this link

http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS027797

[goth_bacon]

I have Windows 7 Home Premium 64-bit.  The link you posted says it's for 32-bit Windows.  I'll try it anyways and see if it works.  Thanks for the help.

[Edit] So I downloaded the installer you linked.  I ran it and it came up with this message:

"This computer currently contains driver versions newer than the versions you are about to install. Are you sure you want to overwrite the following drivers with the older versions?

NVIDIA GeForce GT 640M LE (8.17.12.9555)

NVIDIA GeForce GT 640M LE (8.17.12.9555)"

I guess I don't need to install this?

[OKR-MAN]

Dear Lenovo User , 

First you shoud install intel then install the nvidia

Regards 

[ExJamJus]

@goth,

Download the 64bit version. Also it seems what you have downloaded from the Lenovo support site is the same version as the one you have installed on your laptop currently.

[cordeparker]

I got the same error. I uninstalled my nvidia and the only one that would install at all was the beta driver from the nvidia website