Windows 7 Encrypt Folder with Password

Solution 1:

What I think you want is what's called "on-the-fly" encryption/decryption. This is provided by many encryption systems, including the most popular one (AFAIK), TrueCrypt. Create an encrypted container file, mount it, then 'move' all your files in there. Of course, the first time around, you have to wait until all the files are encrypted.

Note: Truecrypt is no longer supported or in development, I recommend using Veracrypt which is based on the original source code of Truecrypt's and is under development and is supported.

https://veracrypt.codeplex.com/

Solution 2:

One easy option that you could use is to create an encrypted, password-protected archive of the folder. You could use a program like 7-zip (which can be loaded onto a USB flash drive) to do this. Open 7-Zip and navigate to where the folder is. Right-click it, and select "Add to archive" under the 7-Zip menu. On the right side of the dialog box, you can choose encryption options and set a password there.