Lock folder without software

Suppose you want to lock the folder abc in c: which has the path c:\abc. In the same drive create a text file and type
ren abc abc.{21EC2020-3AEA-1069-A2DD-08002B30309D}
Now save this text file as lock.bat


create another text file and type in it
ren abc.{21EC2020-3AEA-1069-A2DD-08002B30309D} abc
Now save this text file as key.bat






Now you can see 2 batch files lock and key.Press lock and the folder lucky will change to control panel and you cannot view its contents.Open key.bat and you will get back your original folder.