Hi, I'm Robinson, and I’m happy to help you today.
I know how frustrating this may be for you but I'll do my very best to help you.
You can use the preboot diagnostic test to eliminate the possibility of a hardware problem. You can see at this link how to run the reboot diagnostic.
https://www.dell.com/support/kbdoc/en-us/000181...
Usually, the message “checking media presence” is shown when your hard drive is not the first option in the boot order setting on Bios.
1-Turn on your computer while pressing repeatedly the F2 or Del key to enter on Bios
2-Go to the Boot tab
3-Change the boot order and set in the first position your hard drive or Windows OS
4-Press F10 to exit, and select the option "Save and reboot"
5-After this you should not see this message anymore
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