How to Lock a Folder
1. Run Folder Security.
Click the Start button in the lower left corner of your screen, select Programs > Folder Security > Folder Security.
2. Click Lock Folders.
3. Select a folder and click OK
Note #1. If you protect a subfolder in Program Files, you will need to unprotect it before using the protected program.
Note #2. We do not recommend that you protect system folders (for example the Windows folder, Program Files, Documents and Settings) as they are required for Windows and its programs to work properly.
4. Enter a password and click Lock Folder.
For security reasons, the password must be at least 6 characters long. Both password fields must match, otherwise Folder Security will display an error message. Remember that the password is case sensitive.
Be sure to remember your password as there is no way to recover it once lost. You can use the Hint option. The hint is a phrase that reminds you about your password. Make sure that your hint is not too obvious, allowing others to guess your password or a part of it. Note that hints make your protection weaker because they release some information about your password.
5. To lock some more folders
After the folder is locked, you can repeat steps 2-4 to lock some more folders. To shut down the program, click Close.
Note: In Windows Explorer, you can right-click a folder to protect it.