How to install wifi driver on dell 15R 3521 laptop windows 7 64 bit

How to install wifi driver on dell 15R 3521 laptop windows 7 64 bit

when i have install dell wireless wifi driver following error occur so how over come this problem and install driver 64 bit windows 7
Anny PatilUI DeveloperAsked:
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JohnBusiness Consultant (Owner)Commented:
Two things:

1. Put your DELL service tag in the DELL support site and ensure you have the correct driver.
2. Look in Device Manager and see if the Wireless card has any errors beside it.

Download the correct driver, uninstall the Wireless Card (in Device Manager), shut down, start up and install the new driver.

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David Johnson, CDRetiredCommented:
BCM_Wireless_WT4_D3P4M_A01_Setup_ZPE then extract the files using 7zip/winrar/winzip and right click on the .inf file and select install
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