Step 2: Enter the USB in your flash drive.
Step 3: Open the USB.
Step 4: Right mouseclick on your zipfile and select 'Get Info'.
Step 5: Change your unarchiving program from Default to The Unarchiver under the tab Open with:
Step 6: Double click on the archive and paste the decryption key you will find in the email you have received from email@example.com in the password popup screen. Select Continue.
The selfextracting zipfile will extract on the USB by default. You can change your extraction preferences of the Unarchiver if there is not enough space on the USB to extract.