If not already on your system, you can download it from the Official SupportAssist Page .

Fully optimized for Windows 11 and Windows 10 (64-bit) . 2. ePSA / Pre-boot Diagnostics (BIOS Level) Support for Dell System Services and Diagnostic Tools

Depending on your system's state (whether it can boot into Windows or not), you should use one of the following official tools: 1. Dell SupportAssist (Windows 64-bit)

Dell provides several integrated diagnostic tools for 64-bit systems, primarily SupportAssist for Windows-based troubleshooting and the for hardware-level testing outside the operating system. Official Dell Diagnostic Tools for 64-bit Systems

SupportAssist is the primary diagnostic suite for Windows 10 and 11. It proactively monitors hardware and software health and is typically pre-installed on most modern Dell PCs.

Open the app, select the "Support" or "Checkup" tab, and choose Scan Hardware to perform a quick or custom test on specific components like the battery, hard drive, or memory.