You could try starting Edge via the following method:
- Right-click (as opposed to normal left-click) the 'Windows Start button'
- Select 'Run'
- In the Run Window type the text
"start microsoft-edge:http://www.google.com"
(ensure it is typed exactly as shown)
- Click 'Ok'
If it works Ok it should startup Edge and go directly to the Google website.
Another option is that as you have upgraded to Windows 10, your previous Windows Internet explorer version (11?) is most likely still installed and available for use. If so, do the following to attempt to start it up:-
- Right-click (as opposed to normal left-click> 'Windows Start button'
- Select 'Run'
- In the Run window type the text "iexplore"
- Click 'Ok'
If either browser starts up successfully you should be able to then access websites to enable download of other scan software such as:-
https://www.malwarebytes.org/antimalware/index.html