There is no cause information available.
Complete the following steps to use the Dell Direct Media.
Step 1: Connect power to your Dell Desktop or Laptop and insert the Dell Direct Media USB drive. Some devices may need a USB-C adapter.
Step 2: Power your Dell Computer or Laptop on and press the F12 Key to enter the "One Time Boot Menu." Select "USB Storage Device" to boot to the Dell Direct Media USB drive.
Step 3: The Dell Desktop or Laptop boots to the Dell Direct Media USB drive. Follow the on-screen instructions and Windows begins to install.
You can find the Dell SupportAssist OS Recovery User’s Guide on the following documentation page: