Folder Lock

Suppose you want to lock the folder in drive d: named Private then open notepad and type..

cd d:
ren private private.{21EC2020-3AEA-1069-A2DD-08002B30309D}

now save file with .bat extension and named it lock.bat

to unlock it open notepad and type

cd d:
ren private.{21EC2020-3AEA-1069-A2DD-08002B30309D} private

and save it with .bat extension and named it unlock.bat

now you only need to double click lock/unlock.bat files to lock and unlock Private folder...