How can I download OS X after restoring?

Hello there, f.sh1.

It sounds like you're having issues restoring the latest version of OS X to your computer. The following Knowledge Base article offers up some great pointers and steps to review:

How to reinstall OS X on your Mac

You might need to reinstall OS X for these reasons:

• You see a prohibitory symbol at startup.
• You inadvertently installed a version of OS X that's older than what came with your Mac.
• You erased your startup disk, or are setting up a new startup disk.

You don't have to reinstall OS X for these things:

• If you want to update or upgrade OS X, use the Mac App Store to install updates or to install a newer version of OS X while leaving your personal data intact.
• If you see unexpected behavior that happens only in one user account on your Mac, you likely don't need to reinstall OS X to resolve the issue. Try starting your Mac in Safe Mode, or search Apple's support site for the specific symptom or message you're seeing instead.

{...}

Reinstall OS X from Recovery

If have a recent Mac, you can use OS X Recovery to reinstall OS X.

1. Turn on your Mac.
2. Immediately after you hear the startup sound, hold the Command and R keys on your keyboard.
3. Release the keys after the Apple logo appears.
4. If prompted, select a Wi-Fi network, or connect your Mac to the Internet using an Ethernet cable.
5. After the Recovery menu appears, select the option to Install OS X.
6. Follow the onscreen prompts to select your destination disk and install OS X.

These steps reinstall the latest version of OS X that you previously had installed on your Mac. If you want to reinstall the version of OS X that came with your Mac, hold Command-Option-R at startup instead. This starts your Mac from Internet Recovery.

Thanks for reaching out to Apple Support Communities.

Kind Regards.

Hello again, f.sh1.

Thanks for the follow up on what you've tried. Due to the nature of your question, it may be best if we get you in contact with someone who can look into this further. You may find more information by using another one of Apple's support resources - https://getsupport.apple.com

Cheers.