bootcamp every time downloading support software

Hi to all,

I just tried to install Window via bootcamp. This is my second time installation. I just formatted and repartitioned my Macintosh HD so I had to install windows again.

My experience give below sequentially:

1. I started the bootcamp to install windows. It asked for downloading windows support software and I inserted an Pen drive and downloaded the software in it. The down load was successful and after that bootcamp assistant window showed just the FINISH button. I clicked and the window goes off.

2. Again I opened bootcamp assistant and clicked next, it is going to download the drivers again. It is happening every time I start Bootcamp.

NOTE:

1. I have Three partitions in HDD.

a. Macintosh HD, Mac OS Extended (journaled)

b. WORK, Mac OS Extended (journaled)

c. BOOTCAMP, NTFS

2. I have previously installed windows using bootcamp. The partition still exists(I didn't removed) after reinstallation of OSX but windows is not rstarting from that partition.

I badly need help.