Connect the USB drive with Dell Recovery & Restore to any available USB port.

Select the Boot List Option and press Enter, and then on the options menu, select Legacy and press Enter.

If you are prompted to allow the changes, select Yes.

Next select Secure Boot and press Enter, and then use the + or - key to change the status to Disabled and press Enter.

Using the arrow keys, browse the Boot tab of the UEFI menu.

Go to Troubleshoot > Advanced Options: UEFI Firmware Settings. Or, from Windows, hold the Shift key while selecting Restart.

When the Dell logo appears, tap F2 on the keyboard several times to open the UEFI menu.

Turn on or restart the computer that you are repairing.

When the recovery process is finished, follow the instructions to reenable Secure Boot. To give your computer permission to start up with the Dell Recovery & Restore USB drive, Secure Boot must be disabled temporarily.

Note: Windows 10 and Windows 8.1 includes a security feature that is called Secure Boot that ensure your computer starts up with trusted software only. Step 2: Start, or boot, the nonworking computer from the Dell Recovery & Restore USB drive For Windows 10 and Windows 8.1 When the process is completed, you will see an 'Operation done' message.If a dialog box about formatting a disk appears, please ignore the message and close it by clicking the X in the upper-right corner.Click Start to transfer the Dell Recovery & Restore software on to your USB.If it is not detected, click the Refresh icon next to the drop-down box. The software should detect the USB drive. On the Dell Recovery & Restore application window, select the USB drive as the media that you would like to use.Connect a 16 GB or larger USB drive to any available USB port.On your desktop, click the Dell Key Creator icon to open the application.Open Dell Recovery & Restore to transfer the software to your USB drive When the installation wizard is complete, click Finish.On the Dell Recovery & Restore installation wizard, click Next and then click Install.The Dell Recovery & Restore installation wizard will appear on the screen. Click or run the Dell Direct Key or setup.exe file to launch the installer.

zip file type and then attempt to extract the files. Note: If the file will not extract correctly, the download may be corrupted or does not have the correct file extension.

Dell reformat windows 10