How to Reset BIOS Password on HP ProBook (Pakistan Guide 2026)
HP ProBook is the mid-range business line, one step below EliteBook, and models like the ProBook 440 G3, 440 G5, 440 G7, 640 G4, and 650 G5 are everywhere in Pakistan's used market. Because ProBooks are widely deployed at universities, NGOs, and mid-sized companies, they often arrive with a BIOS admin password quietly left in place after the last IT admin moved on.
The honest position is that ProBooks share most of HP's business BIOS security with EliteBooks. On older ProBooks (roughly 2012-2015) CMOS clears sometimes worked. On modern ProBooks (2017+) the BIOS password is stored in a protected chip and DIY approaches fail. The unlock market for ProBooks is very similar to EliteBook, though pricing tends to be slightly lower because the boards are simpler and unlock services have more experience with them. Realistic professional unlock is Rs. 4,000-9,000.
Can you do this yourself?
Almost always no on any ProBook from 2016 onwards. Very old ProBooks like the 6470b or 640 G1 may respond to a CMOS pull, but success is inconsistent. The realistic path for modern ProBooks is a workshop EEPROM unlock or a paid HP-focused unlock service. Budget Rs. 4,000-9,000 and 1-3 days.
DIY methods
CMOS battery pull
mediumReality: Marginal. Works on some very old ProBooks (2011-2014). On modern ProBooks the password sits outside CMOS and this will not clear it.
Steps: Power off, remove the main battery and AC, unscrew the service door or bottom panel, and locate the CR2032 coin cell. Unplug the connector for at least 20-30 minutes, then reconnect and boot. On newer ultrathin ProBooks the coin cell may be soldered, which effectively rules this method out.
Tools: Phillips screwdriver, plastic pry tool, 20-30 minutes
System Disabled code with a legacy generator
easyReality: Very low. Old ProBooks (roughly pre-2013) sometimes displayed a Halt or System Disabled code after three wrong password entries. Modern ProBooks do not, and legacy generators do not target modern hardware.
Steps: Enter any wrong password three times at the BIOS prompt. If a numeric halt code appears, note it. On very old machines this code could be fed to an offline generator. Do not pay online sellers for codes for post-2015 models.
Tools: Nothing, but method is mostly obsolete
Reflashing BIOS from a USB via HP recovery
mediumReality: Zero for password clearing. HP recovery flash from USB can restore a corrupted BIOS, but it does not reset a BIOS password. It is a common confusion.
Steps: There is nothing to attempt here for a password reset. If you try to flash a BIOS from USB hoping it clears the password, at best nothing happens and at worst you brick a healthy board.
Tools: None (method does not work for this purpose)
Professional options in Pakistan
EEPROM chip reprogramming
Rs. 4,000-8,000Timeframe: 1-3 days
Standard bench route for ProBook 440 G3, G5, G7, 640 G4, 650 G5 and similar. Small SMD chip is removed, read on a programmer, edited, and resoldered.
Paid HP-focused unlock service (BIOS/SMC image by serial)
Rs. 5,000-9,000Timeframe: 2-4 days
Some bench techs use online services that generate a model-specific unlock image. Works reliably on common ProBook models.
Motherboard replacement
Rs. 20,000-55,000Timeframe: 3-7 days for parts
Not economic for mid-range ProBooks worth Rs. 35,000-60,000. Consider selling the locked unit for parts if unlock quotes are too high for your budget.
What doesn't work
- × Universal HP master password videos on YouTube
- × SSD or hard drive replacement (password is stored on the motherboard, not storage)
- × Windows unlock utilities like Ophcrack, Kon-Boot, PCUnlocker (they cannot see BIOS)
- × Reflashing the BIOS via HP recovery USB (does not remove passwords)
- × Sellers on Facebook claiming a Rs. 500 online HP code for a 2018+ ProBook
Before you buy a used HP
Before buying any used ProBook, do a full cold boot in front of the seller. Press Esc or F10 during the HP splash and confirm you can enter Setup with no password prompt. Look under Security and confirm no admin, power-on, or Drive Lock password is set. Drive Lock in particular is very nasty because it can lock the storage even after a BIOS unlock, and it is not always visible until you try to change drives. If the seller cannot demonstrate an open Setup screen, walk away or negotiate a discount that covers a Rs. 4,000-9,000 unlock.
FAQ
My ProBook 440 G5 asks for an admin password on boot. Can I clear it at home?
Realistically no. This model needs bench EEPROM work. Expect Rs. 4,000-7,000 and 1-3 days at a competent shop.
Is Drive Lock the same as the BIOS password?
No. Drive Lock is a separate password stored on the SSD or HDD itself in ATA security. Even after a BIOS unlock, Drive Lock will still block access to the drive until it is cleared or the drive is replaced.
How much do you charge for a ProBook unlock at NN Laptops Hafeez Center?
For common models like 440 G3, G5, G7, 640 G4 we quote Rs. 4,000-7,000, same to 3-day turnaround. Send us the exact model and serial on WhatsApp 0314 4000131 for a firm quote.
Can I install my own BIOS password after you unlock it?
Yes. After unlock the BIOS is back to Not Set, and you can enter Setup and configure a new admin password. Do not lose it, the same painful cycle will start again.
Do you unlock ProBooks bought outside Pakistan (US or UK stock)?
Yes. The unlock process depends on the hardware, not the country of purchase. Bring or courier the machine, and provide any proof of ownership you have.