When you forgot or lost Windows password, there are many ways to recover it. Here we will recommend 5 free Windows password recovery tools for you.1. Kon-BootKon-Boot is one of the most popular and well-known Windows password recovery tools. It can help you bypass the Windows login password without changing or resetting the password. Kon-Boot is very easy to use. You just need to burn it into a USB drive and then boot from the USB drive. After that, you can log into Windows without password.2. OphcrackOphcrack is another free and popular Windows password recovery tool. It can help you recover lost or forgotten passwords for Windows Vista, XP, 7, 8 and 10. Ophcrack uses rainbow tables to crack passwords. Rainbow tables are the pre-computed hashes of all possible passwords. So it can help you recover passwords quickly.3. PCUnlockerPCUnlocker is also a great Windows password recovery tool. It can help you reset forgotten or lost Windows password for all Windows versions, including Windows 10/8/7/Vista/XP and Windows Server 2016/2012/2008/2003. PCUnlocker can create a bootable CD/DVD or USB flash drive. You just need to boot from the CD/DVD or USB drive and then you can reset Windows password easily.4. Windows Password Recovery ToolWindows Password Recovery Tool is another professional Windows password recovery program. It can help you recover lost or forgotten passwords for Windows 10/8/7/Vista/XP and Windows Server 2016/2012/2008/2003. It can create a bootable CD/DVD or USB flash drive. You just need to boot from the CD/DVD or USB drive and then you can reset Windows password easily.5. Windows Password Reset StandardWindows Password Reset Standard is also a professional Windows password recovery program. It can help you recover lost or forgotten passwords for Windows 10/8/7/Vista/XP and Windows Server 2016/2012/2008/2003. It can create a bootable CD/DVD or USB flash drive. You just need to boot from the CD/DVD or USB drive and then you can reset Windows password easily.