Updated Preboot Diagnostics Guides for Dell and Lenovo philipyip Uncategorized 07/11/201807/11/2018 1 Minute Dell F12 UEFI Preboot Diagnostics Dell Systems Older than 2010 – Legacy Preboot Diagnostics (Bootable USB) Lenovo F10 UEFI Preboot Diagnostics Share this:TwitterFacebookLike this:Like Loading... Published by philipyip View all posts by philipyip Published 07/11/201807/11/2018