Question

Is there any free program that locks folders in Windows 7?

Answer 1

maybe you can use Hide Folder.

Answer 2

If you bring up the folder properties (right click on the folder and select Properties menu item), do you have a Security tabcard?

If the Security tabcard is there, click the Edit button, then Add you as a user, then click the checkbox to give yourself "Full Control", and click the "Deny" checkboxes for all the other users. Click OK when you're done.

You'll need to login as another user to see the effect of the Security changes you've made.

Matthew