LocK-A-FoLdeR is mentioned in best tools to protect your folders with a password
LocK-A-FoLdeR 3.10.3 can be downloaded from our website for free. The software is categorized as Security Tools. The following versions: 3.9, 3.8 and 3.6 are the most frequently downloaded ones by the program users. This free software was originally developed by Gurjit Singh.
This download was scanned by our antivirus and was rated as malware free. The LocK-A-FoLdeR installer is commonly called lock-a-folder.exe, LocK-A-FoLdeR-V3.9.1.exe or lockup.exe etc. LocK-A-FoLdeR was developed to work on Windows XP, Windows Vista, Windows 7, Windows 8 or Windows 10 and is compatible with 32 or 64-bit systems.
From the developer:
LocK-A-FoLdeR ™ is a lightweight and easy to use program that allows you to hide and lock up any folders on your computer, making them invisible and inaccessible to anyone but yourself. After you create a master password, simply select the folder(s) you want to hide and click a button to make them disappear. To unlock a folder, enter your password and select the folder that you want to unlock.
You may want to check out more software, such as Lock a Folder, which might be related to LocK-A-FoLdeR.