## Diagnostic Quick Test 1. Turn on your computer. 2. At the Dell logo, press the F12 key several times until the **One Time Boot Menu** appears. 3. On the boot menu screen, select the **Diagnostics** option (**Figure 1**.) ![One Time Boot Menu](https://supportkb.dell.com/img/ka06P000000QLOmQAO/ka06P000000QLOmQAO_en_US_1.jpeg) **Figure 1:** One Time Boot Menu The diagnostic quick test begins (**Figure 2**.) ![Quick test screen](https://supportkb.dell.com/img/ka06P000000QLOmQAO/ka06P000000QLOmQAO_en_US_2.jpeg) **Figure 2:** Diagnostic Quick Test