Updating the BIOS using the USB drive in Windows.........................................................................................151
Updating the BIOS from the F12 One-Time boot menu................................................................................... 152
System and setup password......................................................................................................................................... 152
Assigning a System Setup password.................................................................................................................... 153
Deleting or changing an existing system setup password............................................................................... 153
Clearing CMOS settings.................................................................................................................................................154
Clearing BIOS (System Setup) and System passwords.........................................................................................154
Chapter 11: Troubleshooting...................................................................................................... 155
Dell SupportAssist Pre-boot System Performance Check diagnostics..............................................................155
Running the SupportAssist Pre-Boot System Performance Check.............................................................. 155
Power-Supply Unit Built-in Self-Test ........................................................................................................................155
System-diagnostic lights................................................................................................................................................155
Recovering the operating system................................................................................................................................157
Real Time Clock—RTC reset........................................................................................................................................157
Backup media and recovery options........................................................................................................................... 158
Wi-Fi power cycle............................................................................................................................................................158
Chapter 12: Getting help and contacting Dell............................................................................. 159
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Contents