The installer which can also be used for repairs can be written to a flash stick as shown in Step 5 of tutorial.
The very first steps to disinfect the computer before it will repair says that Windows Defender can also be written to a stick.
We are volunteers trying to help you, who provide you with a tutorial which has every single step that can be done to boot unbootable Windows 7 - priceless advice unavailable anywhere else - yet you insult us by saying it is not helpful!
Take it to a shop.
Or get someone who can read to read it to you.