You can password protect a folder in Windows 10 using a program called WinRar, which is free to download and use.

How to encrypt your files and folders on Mac? If you have a Mac from late 2017 or later (with a T2 security chip or Apple silicon), then your system drive contents are encrypted by default. However, ...

Backing up your documents and other files in Windows is always advisable in case the originals ever get lost or corrupted. That's especially true for files that are important, sensitive, or ...