1. Suppose there is a folder named test in F:\test

2. create a new file ,open with notepad,edit with the following exact statement

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

3. Now save this text file as loc.bat

4. Create another new file ,open with notepad,edit with the following exact statement

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

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. keep the key.bat in another location ,for security reasons. Only for unlocking copy paste to the original location and double click

(don’t forget to replace test with the folder name)