Dell Hardware Diagnostics Tool |top| Download May 2026

SupportAssist is typically pre-installed. If it is missing, you can download it directly from the Official SupportAssist for Home PCs page . How to Run: Open SupportAssist from your Start menu. Navigate to the Troubleshooting tab.

SupportAssist is the primary desktop application for modern Dell PCs. It proactively monitors system health and allows you to run manual hardware scans.

This is ideal for a one-time check of your processor, video card, or motherboard health without keeping software running in the background. 3. Pre-boot System Assessment (ePSA) dell hardware diagnostics tool download

This tool is and does not require a download. It is the best option if your computer cannot boot into Windows. Enhanced Pre-Boot System Assessment ePSA diagnostics - Dell

Finding the right depends on whether your computer can boot into Windows or if you need to run tests from outside the operating system. Dell provides three primary ways to diagnose hardware: SupportAssist, the Online Diagnostic Test, and the Pre-boot System Assessment (ePSA). 1. Dell SupportAssist (Best for Windows Users) SupportAssist is typically pre-installed

If you don't want to install a full suite, Dell offers a web-based "Quick Test" that uses a small plugin to scan your hardware. Visit the Dell PC Diagnostics Support Page .

Select to test components like your RAM, battery, or hard drive individually. 2. Dell Online Diagnostic Test (Browser-Based) Navigate to the Troubleshooting tab

Click "Download & Install SupportAssist" when prompted to allow the website to communicate with your hardware.