I've just re-installed windows 7 on my lenovo laptop. When I'm trying to install the wireless driver, I keep getting this error message:

`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 downloaded the driver several times and I'm getting the same file. I also tried to download it from another machine to get the actual file if the network is caching the file but it didn't help too. After a little bit of search, I found out that some people say that it's because of the old windows installer but I could find a newer version for windows 7 to install.

Any ideas?