BIOS RESETTARE IN WINDOWS VISTA E WINDOWS XP DUE METODICHE. 1)stacca il cavo di alimentazione elettrica dal pc, aprilo, individua dove è installata la batteria (è grande come una moneta e di colore alluminio), nei pressi della batteria deve esserci un ponticello con la scritta "reset" o "clrtc" o "clear cmos", sposta quel ponticello dai pin 1-2 dove sta, ai pin 2-3, lascialo li per qualche minuto e poi rimettilo dove era prima, chiudi il pc, riattacca il cavo d'alimentazione avvia la macchina. 2) Togli la batteria della quale parlavo sopra, per una 1/2 ORA con le operazioni preliminari già scritte al punto 1, poi la rimetti in loco ed avvii la macchina: 3)terza cosa importante che vale per entrambe le metodiche: dopo averle messe in atto, quando accendi/avvii entri nel bios e vai a cercare una voce ( sono diverse secondo il produttore ) che abbia la parola DEFAULT potrebbe essere "optimize default" o simile, selezioni poi F10 confermi con Y e salvi il tutto riavviando.
Quando sei in modalità grafica metti a posto l'orologio del sistema operativo.
Bypass BIOS Passwords. BIOS passwords can be add extra layer of security for desktop and laptop computers, and are used to either prevent a user from changing the BIOS settings or to prevent the PC from booting without a password.
BIOS passwords can also be a liability if a user forgot their passwords, or if a malicious user changes the password. Sending the unit back to the manufacturer to have the BIOS reset can be expensive and is usually not covered in an a typical warranty. However, there are a few known backdoors and other tricks of the trade that can be used to bypass or reset the BIOS password on most systems.
Backdoor Passwords Many BIOS manufacturers have provided backdoor passwords that can be used to access the BIOS setup in the event you have lost your password. WARNING: Some BIOS configurations will lock you out of the system completely if you type in an incorrect password more than 3 times. Award BIOS backdoor passwords: AMI BIOS Backdoor Passwords: Phoenix BIOS Backdoor Passwords: Misc.
How can I reset CMOS or BIOS settings? If your computer is having issues booting, has errors during boot, after adding hardware is running into issues, or you're having other abnormal system behaviors that cannot be resolved though any other method it may be necessary to reset the CMOS settings or load the default or fail-safe defaults as explained below.
Load or Reset defaults Enter CMOS setup. In CMOS setup look for an option to reset the CMOS values to the default setting or an option to load the fail-safe defaults. With many CMOS setup screens there will be a function key to do this; for example, the F5, F6, F9, F11, or F12 key like shown in the picture to the right. Other setups may list an option that you can arrow over to using the arrow keys and press Enter.
Reset Configuration Data In addition to restoring the system defaults if you've recently added new hardware or resetting the default values did not help resolve your boot issues you may also want to reset the configuration data. Under advanced Hard reset the CMOS. Reset BIOS cancellando memoria CMOS e togliendo la batteria tampone.