The lock folder method might also be called as folder cloacking where a folder is renamed to a known Windows Class Identifier (CLSID) to redirect to a different special folder upon opening. This method can be executed in a single cmd command only.

Steps to execute to lock your folder.

1. Your folder resides in Drive E labeled as myfolder (Your folder may be in different location and your folder may be with different name. It is important that you know where your folder reside to continue with step 2).

2.  Open a command prompt by going to Start>All Programs>Accessories>Command Prompt

or simply press Win+R to open Run and type cmd.

3. Change to folders location. With this example type E: to change prompt to folders current location.

4. Rename the folder by issuing a ren foldername foldername.CLSID. With this example, ren myfolder myfolder.{645ff040-5081-101b-9f08-00aa002f954e}

5. The folder will change to recycle bin.

To unlock, simply do steps listed above however, rename your folder the opposite way. Example, ren myfolder.{645ff040-5081-101b-9f08-00aa002f954e} myfolder

You can cloak your folder in different CLSIDs listed below

• {d20ea4e1-3957-11d2-a40b-0c5020524153} Administrative Tools
• {85bbd92o-42a0-1o69-a2e4-08002b30309d} Briefcase
• {21ec2o2o-3aea-1o69-a2dd-08002b30309d} Control Panel
• {d20ea4e1-3957-11d2-a40b-0c5020524152} Fonts
• {ff393560-c2a7-11cf-bff4-444553540000} History
• {00020d75-0000-0000-c000-000000000046} Inbox
• {00028b00-0000-0000-c000-000000000046} Microsoft Network
• {20d04fe0-3aea-1069-a2d8-08002b30309d} My Computer
• {450d8fba-ad25-11d0-98a8-0800361b1103} My Documents
• {208d2c60-3aea-1069-a2d7-08002b30309d} My Network Places
• {1f4de370-d627-11d1-ba4f-00a0c91eedba} Network Computers
• {7007acc7-3202-11d1-aad2-00805fc1270e} Network Connections
• {2227a280-3aea-1069-a2de-08002b30309d} Printers and Faxes
• {7be9d83c-a729-4d97-b5a7-1b7313c39e0a} Programs Folder
• {645ff040-5081-101b-9f08-00aa002f954e} Recycle Bin
• {e211b736-43fd-11d1-9efb-0000f8757fcd} Scanners and Cameras
• {d6277990-4c6a-11cf-8d87-00aa0060f5bf} Scheduled Tasks
• {48e7caab-b918-4e58-a94d-505519c795dc} Start Menu Folder
• {7bd29e00-76c1-11cf-9dd0-00a0c9034933} Temporary Internet Files
• {bdeadf00-c265-11d0-bced-00a0c90ab50f} Web Folders