Hi, welcome and thank you for your question. My name is ***** ***** I am glad to assist you today.
I am very sorry about your issues. I believe your computer has malware infections that crippled it eventually not allowing you to run or open anything.
In this case, can you try to boot the computer into Safe Mode with Networking? Follow the procedures on this link:
Please let me know by replying to me here so that I can help you further.