If you are an IT admin managing a shared workstation, version 3.1.2 allows you to list every user account on the machine—including hidden Administrator accounts—and reset them all in a single operation.
Legal: Yes, provided you own the computer or have explicit permission from the owner. Resetting a password to access your own machine is fully legal.
Ethical Gray Zone: Using this tool on a work computer without IT approval, or on someone else’s device, is unethical and potentially illegal. Employers should have clear policies. Private investigators or law enforcement require proper authorization.
Isumsoft includes a warning in the software: “Do not use for unauthorized access to computers you do not own.” Isumsoft Windows Password Refixer Ultimate 3.1.2
The software creates a standalone bootable environment. You don't need to install the program on the locked computer. Instead, you use a clean PC to burn the ISO image to a USB drive (via Rufus or the built-in burner) or a CD.
Beyond simple password removal, the "Ultimate" version allows users to:
Using the software is designed to be straightforward, even for non-technical users. The process generally involves three steps, performed on a second accessible computer: If you are an IT admin managing a
Step 1: Install and Create Download and install iSumsoft Windows Password Refixer Ultimate on a computer you can access. Insert a USB flash drive or blank CD/DVD, launch the software, and click "Begin Burning." This writes the necessary boot files to the media.
Step 2: Boot the Locked PC Take the bootable USB to the locked computer. Insert it and enter the BIOS/UEFI setup menu (usually by pressing F2, F12, Del, or Esc). Change the boot order so the computer boots from the USB drive rather than the hard drive.
Step 3: Reset the Password Once booted, the iSumsoft interface will load. It will display all user accounts on that computer. Select the account you are locked out of and click "Reset Password." The software creates a standalone bootable environment
Unlike reinstalling Windows (which wipes personal files), Isumsoft specifically targets the authentication mechanism. The manufacturer claims that version 3.1.2 maintains 100% file integrity during the reset process.
Error: "No Windows installation found." Solution: Enter BIOS and change the SATA mode from RAID to AHCI. Version 3.1.2 supports AMD and Intel RAID drivers, but AHCI is the most reliable for bootable tools.
Error: "The disk is locked." Solution: This usually indicates BitLocker. You must enter your 48-digit BitLocker recovery key first. If you lost that, this tool cannot help—you would need to wipe the drive.
USB won't boot. Solution: Disable "Secure Boot" in your BIOS. While version 3.1.2 is signed, some motherboard implementations of Secure Boot block all non-Microsoft bootloaders.