thank you very much for your question. My name is***** and I will try to help you as quick possible.
Can you please let me know which exact Dell model your are using and at which place you are asked to enter the PIN-code (is it within Windows or directly at the UEFI / BIOS level)?
Thanks for your patience and best regards,
I see that you´ve read my answer, can you provide me with the requested informations so that I can help you?
Thank you very much and best regards,
P.S.: If you don´t require my help anymore, please close the question by giving me a 3 to 5 stars rating for my work. Thank you so much.