After pressing the combination key, you will hear a sharp beep tone.įor some BIOS versions, you can press "F9" to restore CMOS.ġ. Restart your computer, press"F2" to enter BIOS, and press"Alt+F" to restore CMOS. L series systems: Restart your computer, press "F2" to enter BIOS and press "F9" to restore CMOS. After pressing the combination key, you will hear a sharp beep tone. Latitude C, CP and CS series systems: Restart your computer, press "F2" to enter BIOS, and press "Alt+F" to restore CMOS. Press"F2" to enter "System Settings" (BIOS) when the DELL icon appears. Or, set "Reset Config Data" in BIOS, which has the same effect as "Alt+E".Ģ. Press"F2" to enter "System Settings" (BIOS) when the DELL icon appears.Restore BIOS to default settings. Set the password to empty in BIOS, shut down the system and reconnect the PSWD jumper.Ģ.
Password clearing method 2: Remove the PSWD jumper on the MB and start up the system. Password clearing method 1: When the password input box appears, type in the password and press "Ctrl" and "Enter" simultaneously. After pressing the combination key, you will hear a sharp beep tone.Īlt+F – Restore BIOS to the default settings. Then, press the following three combination keys:Īlt+E – Clear (Release) the interrupted resources and reallocate resources at next startup. Press "Caps Lock", "Num Lock" and "Scroll Lock" buttons to light up the corresponding lights on the keyboard. Press "F2" to enter "System Settings" (BIOS) when the DELL icon appears. The following examples describe how to restore the BIOS settings in a few common computer models:Ģ. The restoration methods vary with different computer configurations and Windows 7 versions. If the same problem occurs in your computer, you can try to restore the BIOS settings to solve this problem. Why can't I log in to Windows 7 system after startup when the graphics card and display operate normally, but it does well after reboot?
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