[T420] SystemUpdate Catalog Error

System Update occurred "an error was detected with the package catalog for your system."

 

After Clean,

1) Install Network Adapter,NVidia Driver Only.

2) Install SystemUpdate to install other drivers.

 

But, It may be occurred that System Update fails with "An error was detected with the package catalog for your system...".

 

To slove this problem, Install Windows 7 with ServicePack.