I have tried everything to open The Diagnostic Tool and The Tuning Utility. They won't install or even open. I have an Intel i7-4970T CPU.
Then you have some OS issue. If you are using a 3rd party Antivirus program, disable it or remove it. If you have a 3rd party firewall, remove it. Using Windows Defender and WIndows firewall, does the problem still exist?
You have BOTH Windows Defender and AVG running, at the same time? Disable AVG. And, make certain that WiseCleaner is disabled and not running.
You do not want AVG and WiseCleaner to possibly interfere with anything.
Clearly, your windows configuration with tools like AVG and WiseCLeaner are causing you problems. You need to do a clean install of Windows without adding junk like avg and wisecleaner and any other 3rd party junk.
IPDT installs and runs on Windows 10. Your problem is with your system, which you need to cleanup first.