Assigning a system setup password.......................................................................................................................117
Deleting or changing an existing system setup password................................................................................118
Clearing CMOS settings................................................................................................................................................. 118
Clearing BIOS (System Setup) and System passwords..........................................................................................118
Chapter 9: Troubleshooting........................................................................................................ 119
Dell SupportAssist Pre-boot System Performance Check diagnostics...............................................................119
Running the SupportAssist Pre-Boot System Performance Check...............................................................119
Power-Supply Unit Built-in Self-Test .........................................................................................................................119
System-diagnostic lights................................................................................................................................................120
Recovering the operating system.................................................................................................................................121
Real Time Clock—RTC reset.........................................................................................................................................121
Backup media and recovery options........................................................................................................................... 122
Wi-Fi power cycle............................................................................................................................................................ 122
Chapter 10: Getting help and contacting Dell............................................................................. 123
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