Hi Apollo Payne.
Thanks for reporting this issue in Microsoft Community.
In your description, when you try to install Java 8, when you start it after installation, it opens the installation window again and asks you to repeat the installation.
I noticed that you tried a number of things, including using an uninstall tool, setting up a firewall or Windows Defender, etc. Thanks for your efforts to resolve this issue.
Installing Java in Windows is not a simple process, in which you need to have the right paths and folders with specific names in your Explorer, as well as some configurations for your environment variables.
It is beyond the scope of our community's support to go into these details for you, but please don't worry, you can post your questions to Microsoft Learn, where there will be more specialized support staff, or support staff with development experience, who will be able to provide you with more targeted help in this area.
Additionally, I have noticed that you have contacted tech support by making a phone call, but they misinterpreted your needs and hung up. I apologize to you for their failure to provide you with relevant assistance.
When you contact the support staff online, you can request them to provide you with a service upgrade so that you can access better services.
You can also refer to the following steps to contact our technical support staff online via your browser
1 Please click on the following link
https://support.microsoft.com/en-us/contactus
Then login to your Microsoft account at the top right hand side.
Then click on the icon below
2 Click on Get Home Support on the left side
3 Enter Technical support in the input box and click on the Get Help button at the bottom
4 Click the Contact Support button at the bottom of the screen
5 Select Windows in Products & Services, then select Technical support in the category, then click the Confirm button below
6 Click on Chat with a support agent in your web browser inside
If you select another category, you may be presented with a way to contact a support agent by phone.
7 Fill in your email address and click the confirm button below, a support agent will contact you with your information.
Thank you for your understanding and support.
Best regards,
Zev - MSFT | Microsoft Community Support Specialist