View Dell Hardware Diagnostics Key UK. If you miss it, just wait for windows to finish starting and try 5. Press the 'win + r' keys to.
Use the arrow keys to select diagnostics and on startup hit f12 button several times until a screen appears.then shift to diagnostics tab and run hardware test.
Dell computers include a diagnostic software tool that tests your computer's hardware for errors. The diagnostic shows whether or not hardware is functional. When the diagnostics run, click install to a usb flash drive. Interrupt the boot process on the splash screen by pressing the f12 key.