Well here is a simple solution. Suppose you have a folder “TEST”, and you want to lock it.
Just follow the steps and see the result.
1. Open a notepad and copy paste the code ; “ren test test.{21EC2020-3AEA-1069-A2DD-08002B30309D}”, without quotes.
2. Save this file as “loc.bat”.
3. Open notepad again and paste in the code ; “ren test.{21EC2020-3AEA-1069-A2DD-08002B30309D} test”, without quotes, and save this file as “key.bat”.
4. Just paste both these files where your folder is located. Run the LOC file and your folder will turn into Control Panel.
5. To unlock that you need to run the KEY file and everything will become back to normal.
This is very basic kind of locking, Very few people know of this. However, If you want some higher level of security for your data, you can try folder locking softwares available in the market.