System Setup options...................................................................................................................................................... 86
Updating the BIOS............................................................................................................................................................ 97
Updating the BIOS in Windows................................................................................................................................ 97
Updating the BIOS using the USB drive in Windows..........................................................................................97
Updating the BIOS from the One Time Boot menu............................................................................................ 98
System and setup password...........................................................................................................................................98
Assigning a System Setup password......................................................................................................................99
Deleting or changing an existing system password or setup password.........................................................99
Clearing BIOS (System Setup) and System passwords.........................................................................................100
Clearing chassis intrusion alert.....................................................................................................................................100
Chapter 8: Troubleshooting....................................................................................................... 102
Handling swollen rechargeable Li-ion batteries........................................................................................................102
Locating the Service Tag or Express Service Code of your Dell computer ..................................................... 102
Dell SupportAssist Pre-boot System Performance Check diagnostics.............................................................. 103
Running the SupportAssist Pre-Boot System Performance Check.............................................................. 103
Built-in self-test (BIST)..................................................................................................................................................103
LCD Power rail test (L-BIST)................................................................................................................................. 103
LCD Built-in Self-Test (BIST)................................................................................................................................. 104
Diagnostic error codes................................................................................................................................................... 104
Recovering the operating system................................................................................................................................104
Real Time Clock—RTC reset........................................................................................................................................104
Backup media and recovery options........................................................................................................................... 105
Wi-Fi power cycle............................................................................................................................................................105
Drain residual flea power (perform hard reset)....................................................................................................... 105
Chapter 9: Getting help and contacting Dell...............................................................................107
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