This tool is intended for use or have explicit permission to service. Bypassing security features on computers you do not own is illegal in most jurisdictions. Use CLNPWD responsibly and only to regain access to your own locked hardware.
The utility itself is a 16-bit DOS application. To use it on a "64-bit download" or system, you must boot from a separate USB drive.
Select the USB drive from the boot list to launch the DOS command prompt. Type clnpwd.exe and press . clnpwd.exe 64 bit download
clnpwd.exe, or Certificate Enrollment and Renewal, is a legitimate system process in Windows that handles certificate enrollment and renewal tasks. It's a critical component for maintaining secure connections and authentication within the Windows environment.
: For older desktop-style laptops, removing the CMOS battery for several minutes can sometimes drain the memory and reset settings. This tool is intended for use or have
A console window will appear. Typically, you would press 0 to kill/remove the CMOS password, or 2 to decrypt it.
: The "Acer Clean Password Utility" screen will appear, typically offering three choices: 1 : Clear User Password 2 : Clear Supervisor Password The utility itself is a 16-bit DOS application
does not work for your hardware, consider these modern methods:
It is common for antivirus programs like Windows Defender to flag clnpwd.exe as a threat. . Many security vendors use heuristic analysis to identify suspicious behavior; because clnpwd.exe is an older tool designed to interact with a computer's low-level hardware (the BIOS), it can be incorrectly flagged as a "hack tool." One analysis identifies the false positive occurs because the file contains a DLL that is commonly found in viruses. If you download the tool from a trusted source, you may need to temporarily disable your antivirus or add an exception for the file.
Download the clnpwd.zip file and extract it to a folder, such as C:\cmospwd .