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Still pressing those keys, press and hold the Power button on the computer for 2 to 3 seconds, and then release the Power button but continue to hold the Windows and B keys until the BIOS update screen displays or you hear a beeping sound (usually 8 beeps). With the computer off, press and hold the Windows key and the B key at the same time. To recover an earlier version of the BIOS on your computer: If the BIOS is corrupted, the system automatically attempts to restore the BIOS from a hidden partition when the computer is restarted. The BIOS can be corrupted during normal operation, through environmental conditions (such as a power surge or outage), from a failed BIOS upgrade or damage from a virus. If the BIOS on your computer becomes corrupted, the computer fails to start to Windows. HP Instant Welcome to HP Forums Community!.Business PCs, Workstations and Point of Sale Systems.Printer Wireless, Networking & Internet.DesignJet, Large Format Printers & Digital Press.Printing Errors or Lights & Stuck Print Jobs.Notebook Hardware and Upgrade Questions.
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