Hi and thanks for reaching out. My name is Bernard a Windows fan like you. I'll be happy to help you out today.
I understand the issue you have, there is nothing to worry I am here to help, I know some of these steps are already done, you have just skipped them if you think it will have the same result.
First, we need to go to Windows recovery mode and try the options there:
Restart the device 3-5 times until I reach Windows recovery mode, wherein you have an option to select Continue, Troubleshoot, or Exit.
Or try to Press and hold the Shift key while continuously pressing F8 while starting the PC
Then on Windows Recovery:
Do system Restore:
Click Troubleshoot> Advanced options> System restore - Follow the prompt and choose the date when it was working fine.
If failed we may need to do a reset keep your files, however, this process will delete all apps, if you want to proceed follow the steps below:
On Windows Recovery> Click Troubleshoot> Reset this PC> Keep my files- Follow the prompt to reset.
Let me know how it goes and I hope that helps.
Bernard