We know that folder encryption is built into the Windows XP system, but do you know that using the Recycle Bin can also encrypt the folder?
First, open My Computer, click the View button in the toolbar, select Folder Options, choose Show All Files in the pop-up dialog box, and cancel hide protected operating system files (recommended). Then click
"OK".
Next, go to the system root (C:\) and right click on the Recycle Bin. (called "Recycled" folder), in the Pop-up shortcut menu dialog box Select "Enable Thumbnail View", and then click "Apply", the reception found that the system automatically "read-only" attribute selected, you need to manually remove " Read-only property, and then click OK. At this point you will find that the icon becomes a normal folder, then double-click the "Recycled" folder, find an initialization file named "Desktop.ini" and activate it, copy it to the file you need to encrypt, such as "F:\Test" folder below.
Finally, right-click the F:\Test folder, select Properties, make sure that the read-only property is selected in the pop-up dialog box, and then click the hook before the Enable thumbnail viewing check box, and then make sure.