HP ProBook 450 G2 Go to product viewer dialog for this item.
, resetting a BIOS password is complex because it is a business-class device with enhanced security features . Unlike consumer laptops, removing the CMOS battery generally clear the password on this model HP Support Community 1. Current Official HP Policy
As of 2026, HP's official stance for business PCs is that they cannot reset a lost or forgotten BIOS password. System Board Replacement : According to HP's official support policy
, the standard resolution for a forgotten BIOS password is replacing the system board at the owner's expense. Proof of Ownership : In some regions, HP Support
may still offer assistance if you can provide valid proof of purchase and identification. HP Support Community 2. Potential Reset Methods
While official support is limited, the following methods have historically been used for this specific model: HP ProBook 450 g2 bios password reset
To reset the BIOS password on an HP ProBook 450 G2 , you generally cannot use the traditional "CMOS battery pull" method common in older laptops, as the password is stored in non-volatile memory. Here are the most effective ways to address a locked BIOS: 1. HP Support (Official Method)
Since the ProBook is a business-class machine, HP can provide a customized file to reset the password. HP Customer Support and provide your laptop’s Serial Number
They will send you a file to place on a FAT32-formatted USB drive. With the USB plugged in, hold Windows Key + Arrow Up + Arrow Down while powering on the device to trigger the reset. 2. HP BIOS Configuration Utility (BCU)
If you still have access to Windows on the machine, you can try using the HP BIOS Configuration Utility Run the utility as an administrator via Command Prompt. Use the command BiosConfigUtility.exe /NewAdminPassword:"" to attempt to clear the existing password. 3. Password Reset Tools Community-developed tools like HPBR (HP BIOS Recovery) are often used for older ProBook models. You can find guides on My Digital Life
forums where users share "unlocker" tools specifically for the G2 series.
This requires creating a bootable DOS USB drive and running a script tailored to your specific model. 4. Hardware EEPROM Flash (Advanced)
If software methods fail, the password is physically stored on an EEPROM chip on the motherboard. This involves using an external programmer (like a
) to clip onto the chip and overwrite the BIOS chip with a "clean" dump. This is a technical process usually handled by independent laptop repair shops
Modern HP laptops may require a motherboard replacement if the official SMC file cannot be generated or if the BIOS chip is corrupted during a manual flash. for the HP BIOS Configuration Utility?
Resetting the BIOS password on an HP ProBook 450 G2 Go to product viewer dialog for this item.
is more complex than on standard consumer laptops because the password is stored in non-volatile memory. This means traditional methods like removing the CMOS battery will reset system settings (time/date) but will not remove the BIOS password. Option 1: Request an SMC.bin File (Official Method) hp probook 450 g2 bios password reset
For this specific model, HP previously provided a customized SMC.bin file to authorized owners. You can use this file at boot to reset the password. Contact Support: Reach out to HP Business Support.
Provide Proof: You will likely need to provide proof of ownership and the laptop's serial number.
Escalate: If the first representative cannot help, ask to escalate the service request, as HP's policy on providing these files has become more restrictive recently. Option 2: Generate an Unlock Code (Halt Code Method)
Some HP models generate a "system disabled" code after multiple failed password attempts.
Turn on the laptop and press F10 repeatedly to enter the BIOS. Enter an incorrect password three times.
Check for a Code: If a "System Disabled" message appears followed by an 8-digit code (sometimes starting with "A"), write it down.
Get Key: Visit a site like bios-pw.org or biospark.com on another device and enter the code exactly as shown.
Unlock: If a key is generated, restart the ProBook and enter that key in the password prompt.
Note: Many ProBook 450 G2 units do not generate this code and will simply lock without showing one. Option 3: Third-Party Utility (Technical)
Some community-developed tools can create a bootable USB to clear the password chip.
Mazif/HPBR Utility: A specialized program often cited by the community for older ProBooks and EliteBooks. It requires creating a bootable USB drive and running a specific script to target the BIOS user data.
Caution: These tools are not official and carry the risk of corrupting your BIOS if used incorrectly. Option 4: Hardware Reprogramming (Advanced)
If no software method works, the password must be cleared by physically reprogramming the BIOS chip. Reset forgotten HP laptop bios password A [12345678]
To reset the BIOS password on an HP ProBook 450 G2, the most reliable official method is contacting HP Support to obtain a customized SMC.bin file. This file is used at boot to clear the password.
HP generally does not provide master passwords or backdoor codes for this business-class model. Official Reset Methods
HP Support Escalation: Contact HP Support and ask to escalate your request for an SMC.bin file specifically for your ProBook 450 G2's serial number. HP ProBook 450 G2 Go to product viewer dialog for this item
System Board Replacement: HP's official stance for business PCs with lost BIOS passwords is that the system board must be replaced. Common Alternative (Third-Party) Methods
If HP support is unavailable, users often attempt these non-official methods:
System Disabled Code: Some HP BIOS prompts will show a "System Disabled" code after three incorrect attempts. This 8-digit code (sometimes starting with 'A') can be used with third-party tools like bios-pw.org or biospark.com to generate an unlock key.
CMOS Reset: Removing the CMOS battery for several minutes can sometimes reset settings, though on most ProBooks, this does not clear the administrator password as it is stored in non-volatile memory.
EEPROM Reprogramming: For advanced users, removing the BIOS chip and using a hardware programmer (like the CH341A) to flash a clean BIOS file is a known technical workaround.
These videos demonstrate various ways to approach an HP BIOS password reset, from software tools to advanced hardware modifications: Reset forgotten HP laptop bios password A [12345678] 371K views · 2 years ago YouTube · ToxicNerd
Here’s a short, fictional story based on that scenario:
The Locked Laptop
Alex stared at the HP ProBook 450 G2’s screen, its cold, gray BIOS password prompt blinking like a dare. “Enter Password” — three attempts left, then permanent lockout.
The laptop had belonged to his late uncle, a retired IT manager who never wrote anything down. After the funeral, Alex found the ProBook in a dusty office closet, still plugged in, as if waiting for its owner to return. No will. No note. Just a dead man’s machine and a stubborn digital gate.
Alex had tried everything obvious: birthdays, pet names, “admin,” even “password123.” Nothing worked.
After hours of internet deep dives, he found a shadowy forum post from 2015:
HP ProBook 450 G2 – BIOS lock bypass: Short the SCL and SDA pins on the EEPROM chip (U365 near the CMOS battery) while booting. Do at your own risk.
Alex’s hands trembled. He wasn’t a hardware hacker — just a broke grad student who needed those old project files for his thesis.
At 2 a.m., armed with a paperclip and a jeweler’s screwdriver, he cracked open the ProBook’s casing. There it was: a tiny chip labeled U365, next to a silver coin battery. Two microscopic pins, side by side.
He held his breath, touched the paperclip to both pins, and pressed the power button with his other hand. The Locked Laptop Alex stared at the HP
The fan spun. The screen flickered. For one heart-stopping second, the BIOS password box vanished — replaced by a white cursor on black.
A single line appeared:
Checksum mismatch – BIOS settings reset.
Then the laptop rebooted normally. No password prompt. Just Windows 7, booting to his uncle’s clean, old desktop — a photo of Alex as a child on the wallpaper.
He exhaled. The data was saved. The lock was broken.
But as he copied the files, he noticed a hidden folder: BIOS_backup containing a single text file. Inside, one line:
Son, if you’re reading this — you earned it. Password was your mother’s maiden name. Love, Uncle Paul.
Alex smiled, closed the laptop, and finally cried.
Moral of the story: BIOS passwords keep honest people out. But a little courage (and the right forum thread) can sometimes bring back more than just files.
Disclaimer: This article is for educational purposes and for resetting a password on a device you own legally. Bypassing security on a lost, stolen, or unauthorized device may violate laws and HP’s policies. Proceed at your own risk.
Important: On some ProBook 450 G2 units, the BIOS password is stored in a separate EEPROM chip (often a
SOP-8chip labeled25Q...). For those, Method 2 may fail. See Method 3.
If the software methods fail, welcome to the most famous trick for HP laptops (2013-2017). The HP ProBook 450 G2 relies on a Keyboard Controller (KBC) , usually an ITE chip (IT8587 or similar). By shorting two specific pins during boot, you force the BIOS to bypass the password check.
Risk Level: Moderate (Requires basic disassembly and a steady hand).
You will need:
If the above fail, the password resides on a dedicated security chip. This method is risky.
Winbond 25Q64FVSIG or similar) on the motherboard.Warning: Incorrect shorting can destroy the motherboard. Do not attempt without electronics experience.
On the ProBook 450 G2 motherboard, look for an 8-pin chip labeled:
MX25L6473E (Most common)W25Q64FVWinbond 25Q64It’s usually near the Southbridge or under a small sticker.