Here is an easy way to lock your folders in Windows XP. Suppose you have a folder in your drive which contains some secret files or some files that you don't want others to see. Let the folder name be 'Folder1'. Now create two batch files in the same drive. To do so open the notepad and type the following code to it.

ren Folder1 Folder1.{21EC2020-3AEA-1069-A2DD-08002B30309D}

Now save this file as "loc.bat". This is the batch file to lock the folder.
Create another batch file by the same way we created the former one but type this code to it.

ren Folder1.{21EC2020-3AEA-1069-A2DD-08002B30309D} Folder1

Save this file as "key .bat" and this is the file for unlocking the folder.
Now double click on the "loc.bat". The folder is now locked and it's icon is changed to Control Panel icon. Double clicking the folder will redirect us to Control Panel. To unlock the folder, double click on the "key.bat" file and the folder will be restored.

Labels: How to, Tips n Tricks, Tutorial, Windows XP Hacks