How I can driver update

Hi @vishalbaral

Here's a link to the drivers for the PC

Click on Find Specific Drivers → All Optiplex 740 Tower and scroll down to Network Ethernet and wireless → Intel 8260/7265/3165 Wi-Fi Driver to find the download link.

Download the drivers to the PC using an Ethernet connection on the PC or download to a USB flashdrive on another PC .

When you have the drivers, in the PC go to Device Manager → Network Adapters → expand list and right click on the Intel 8260/7265/3165 entry → Update driver and follow the prompts to update the drivers from the downloaded file location.

To get to Device Manager in Win10/Win11, press the Win key + x key (both keys together and click on the Device manager link in the menu box