If the installation file doesn't work, you can force the driver installation.

The safest and best way to download drivers is through the official Dell Support website. This ensures you are getting the most compatible, stable, and malware-free version. Dell OptiPlex 790 Drivers & Downloads Steps: Go to the link above. Set the Operating System to Windows 7 (64-bit or 32-bit) . Expand the Network category.

If there is a yellow exclamation mark next to it, right-click the item, select , and point it to the folder where you extracted the Dell driver files. Check Hardware Links

If the official site is unavailable, some users turn to verified driver repositories. Note that these are not official Dell sites. DriverScape:

Click the button, right-click Computer , and select Manage . Click Device Manager in the left-hand sidebar. Expand the Network adapters section. Look for the Intel(R) 82579LM Gigabit Network Connection .

The safest and most reliable way to get your network drivers is through the . Ethernet Driver: The OptiPlex 790

What , if any, is showing in your Device Manager? Share public link

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.

Download the Dell Command | Deploy Driver Pack for Optiplex 790 Win 7 . 3. Alternative: Manually Installing via Device Manager

Click Install or Extract when the Dell driver wizard appears.

If the installer doesn't work, you can update manually through the : Dell Driver Pack, v.1.0, A01

Support for OptiPlex 790 | Drivers & Downloads | Dell Russia

Finding the correct network driver for an older, reliable desktop like the Dell OptiPlex 790 running Windows 7 can be challenging. Network connectivity is essential for your system, and using the official, virus-free driver ensures maximum stability and performance.

You must know whether your Windows 7 operating system is 32-bit (x86) or 64-bit (x64) to download the correct driver file version. How to Check Your Windows 7 Architecture Click the Start button. Right-click on Computer and select Properties . Look under the "System" section next to System type . 2. Best Sources for Free, Safe Driver Downloads

that contains all necessary drivers for the 790 in one compressed file. Alternative for Wireless : If your 790 has an optional Wi-Fi card, you may need the Realtek 802.11n driver often found in these units. Step-by-Step Installation Guide Dell Command | Deploy Driver Pack for Optiplex 790 Win 7