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Top Solutions

The most helpful knowledge articles for your product are included in this section.

Windows 7 64-bit install on Optiplex 790/990 with UEFI Mode
Windows 7 64-bit install on Optiplex 790/990 with UEFI Mode

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Users may want to install Windows 7 64-bit on an Optiplex 790 or 990 with the Basic Input/Output System (BIOS) Unified Extensible Firmware Interface (UEFI) setting enabled. Here are some important ...

Last Modified: 24 Sep 2019

Article ID: SLN82509

Dell OptiPlex 790 System Guide
Dell OptiPlex 790 System Guide

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Quick Links Getting Started with your Dell System System Documentation - User Guides/Manuals Find your Service Tag and Express Service Code Dell Drivers and Downloads Warranty Status and Service ...

Last Modified: 16 Sep 2019

Article ID: SLN285276

How to Find and Activate Microsoft Office 2016 / 2019 / 365 on your Dell System
How to Find and Activate Microsoft Office 2016 / 2019 / 365 on your Dell System

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Get online support for Microsoft Office 2016 / 2019 / 365 installed on your Dell device. Find troubleshooting tip and activation steps for OEM factory installed versions of Microsoft Office. Show ...

Last Modified: 10 Oct 2019

Article ID: SLN304490

How to Troubleshoot a No Power Issue on your Dell Desktop
How to Troubleshoot a No Power Issue on your Dell Desktop

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The following article contains information and Dell knowledge base article links to assist with troubleshooting a No Power situation on your Dell desktop. Table of Contents: No Power Introduction

Last Modified: 08 Oct 2019

Article ID: SLN285154

Dell Diagnostic Tools to Diagnose and Fix Hardware Problems on Your Dell PC, Tablet or Servers
Dell Diagnostic Tools to Diagnose and Fix Hardware Problems on Your Dell PC, Tablet or Servers

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When your Dell PC, monitor or tablet does not seem to be working correctly, diagnostic tools are available to help you identify what the issue may be, and provide troubleshooting steps to help ...

Last Modified: 02 Oct 2019

Article ID: SLN114988


Manuals and Documents

Manuals, documents, and other information for your product are included in this section.