One time boot menu.........................................................................................................................................................111
System setup options......................................................................................................................................................112
Updating the BIOS............................................................................................................................................................117
Updating the BIOS in Windows............................................................................................................................... 117
Updating the BIOS using the USB drive in Windows.........................................................................................118
Updating the BIOS from the F12 One-Time boot menu....................................................................................118
System and setup password..........................................................................................................................................119
Assigning a system setup password...................................................................................................................... 119
Deleting or changing an existing system setup password............................................................................... 120
Clearing BIOS (System Setup) and System passwords.........................................................................................120
Chapter 9: Troubleshooting........................................................................................................ 121
Handling swollen Lithium-ion batteries....................................................................................................................... 121
Locate the Service Tag or Express Service Code of your Dell computer .............................................121
Dell SupportAssist Pre-boot System Performance Check diagnostics.............................................................. 122
Running the SupportAssist Pre-Boot System Performance Check.............................................................. 122
Built-in self-test (BIST)..................................................................................................................................................122
M-BIST......................................................................................................................................................................... 122
LCD Power rail test (L-BIST)..................................................................................................................................123
LCD Built-in Self Test (BIST)..................................................................................................................................123
System-diagnostic lights................................................................................................................................................124
Recovering the operating system................................................................................................................................125
Real-Time Clock (RTC Reset)...................................................................................................................................... 125
Backup media and recovery options........................................................................................................................... 125
WiFi power cycle..............................................................................................................................................................125
Drain residual flea power (perform hard reset)........................................................................................................125
Chapter 10: Getting help and contacting Dell............................................................................. 127
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