Turn on the laptop and immediately press to enter the Startup Menu. Press F10 to attempt to enter BIOS. Enter an incorrect password three times. When prompted, press F7 for HP SpareKey Recovery .
| | Best Method | Cost | Success Rate | | :--- | :--- | :--- | :--- | | Corporate/In-Warranty | HP Official Support | Free – $50 | 100% | | Out of Warranty (Old BIOS) | SMC.bin USB Method | Free | ~70% | | Out of Warranty (New BIOS) | SPI Flash / Replace Motherboard | $100+ | 50% (Risk of brick) | | Locked by Absolute Persistence | None (eBay paperweight) | N/A | 0% |
Note: On some newer G8 units, HP removed physical jumpers. Then you need Method C. hp elitebook 840 g8 bios password reset
: This involves using a hardware programmer (like a CH341A) to physically read and rewrite the BIOS chip on the motherboard. This requires advanced soldering skills and a "clean" BIOS dump, and it will likely void your warranty .
Before attempting a reset, you must understand why the process is hard. Turn on the laptop and immediately press to
The HP EliteBook 840 G8 is a business-class laptop with Intel 11th-gen CPUs. It uses an advanced security chip (TPM 2.0) and HP’s Sure Start (self-healing BIOS). Traditional "CMOS battery removal" on this model.
: HP Support may provide a specialized System Management Command (SMC.bin) file. You place this file on a FAT32-formatted USB drive, insert it into the laptop, and follow specific key combinations (usually holding Windows Key + Arrow Up + Arrow Down while powering on) to clear the password. When prompted, press F7 for HP SpareKey Recovery
If you own the laptop and have proof of purchase: