Anyone can teach me how to decrypt the file or folder which been encrypt in old computer?

Half years ago, my precious photo and files had been encrypt and the laptop had been reformat. all these encrypt files and photo had been transfer to external hardisk and the file cannot open using new laptop.  I would like to seek the help from all of you on how to decrypt the photos and files because those photo is my university memories. Please.

Or anyone in Lowyat KL or Yik Foong, Ipoh can do the decryption of the files? or anyone know anybody can do this?Please do help. Thank you very much.