Lock any folder without using any software 1. Suppose you have a folder named abcd in D:\abcd. 2. In the same drive next to the folder create a new notepad file with the exact statement ren abcd abcd.{21EC2020-3AEA-1069-A2DD-08002B30309D} 3. Now save this text file as loc.bat 4. Create another notepad file and type ren abcd.{21EC2020-3AEA-1069-A2DD-08002B30309D} abcd 5. Save this as key.bat 6. Now there are two batch files. Double click loc.bat and your folder will change into Control Panel and its contents cannot be viewed . 7. To open the folder double click key.bat and you get back your original folder. 8. For more safety keep the key.bat in another location . Only for unlocking copy paste to the original location and double click (don't forget to replace abcd with the folder name) Or Paste it on note pad cls @ECHO OFF title Folder Locker if EXIST "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" goto UNLOCK if NOT EXIST Locker goto MDLOCKER :CONFIRM (Y/N)...