- Install 7-Zip on your computer (it may already be there)
- Find the file you wish to encrypt
- Right-click on the file, choose the 7-Zip menu and select “Add to Archive…”
4. Select the filename for your encrypted file. The default is the original filename with a .7z at the end.
5. Check the “Encrypt file names” box
6. Verify that “Encryption method:” is set to AES-256
7. Click OK
8. Your file will be encrypted and placed in the same directory as the original.