3 Press F12 after the Dell logo is displayed on the screen to access the boot menu.
A Preparing one-time boot menu message appears.
4 After the boot menu loads, select the USB recovery device under UEFI BOOT.
The system reboots and a screen to Choose the keyboard layout is displayed.
5 Choose your keyboard layout.
6 In the Choose an option screen, click Troubleshoot.
7 Click Recover from a drive.
8 Choose one of the following options:
– Just remove my les to do a quick format.
– Fully clean the drive to do a complete format.
9 Click Recover to start the recovery process.
Enhanced Pre-Boot System Assessment
(ePSA) diagnostics
CAUTION: Use the ePSA diagnostics to test only your computer. Using this
program with other computers may cause invalid results or error messages.
The ePSA diagnostics (also known as system diagnostics) performs a complete check
of your hardware. The ePSA is embedded with the BIOS and is launched by the BIOS
internally. The embedded system diagnostics provides a set of options for particular
devices or device groups allowing you to:
• Run tests automatically or in an interactive mode
• Repeat tests
• Display or save test results
• Run thorough tests to introduce additional test options to provide extra
information about the failed device(s)
• View status messages that inform you if tests are completed successfully
• View error messages that inform you of problems encountered during testing
NOTE: Some tests for specic devices require user interaction. Always
ensure that you are present at the computer terminal when the diagnostic
tests are performed.
For more information, see Dell EPSA Diagnostic 3.0.
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