Yes Administrator and UAC deactivate . I get System Error like this : View attachment 6537 I think the problem is the Pubkey in BB.ROM but i dont know where find Pubkey valide for an other SLIC . I think if i can dump bin cert of Toughbook CF-19 MK4 its Ok because i think he have SLIC 2.1 because its possible to upgrate to Seven. Thanks
I am running Win7 Ultimate and Yes I am flashing in DOS. Anyway, I have flashed BIOS to previous version 00KT, made a modified SLIC2.1 (with DELL certificate) BIOS file with Phoenix Mod Tool v1.42 and it worked. Thank you everyone for support.