In Windows, you can put a password on a folder by using the built-in “Encrypting File System” feature. Here are the steps:
1. Right-click on the folder that you want to password-protect.
2. Select “Properties” from the context menu.
3. Click on the “Advanced” button in the “General” tab.
4. Check the box next to “Encrypt contents to secure data.”
5. Click “OK” to close the “Advanced Attributes” window.
6. Click “Apply” and then “OK” to close the “Properties” window.
7. If prompted, choose whether to apply the encryption to the folder only or to the folder and all of its subfolders and files.
8. Windows will now encrypt the folder and its contents. You can access the folder normally, but others will need the encryption key to view its contents.
Note that the encryption key is tied to your user account, so anyone who wants to access the folder will need to log in to your user account or have the encryption key. Also, make sure to back up your encryption key so that you don’t lose access to the folder in case of a system failure or other issue.