Windows Defender & "Marie" user

Good day!

I'm having trouble with my laptop. I have seen posts with regards to Windows Defender however, none of it works. I reset my laptop to factory but I kept on facing the same issue.

I can open my Windows Defender however it was just plain black. It won't load. I tried to check on the programs installed but it wasn't there. When I tried to download some files on Microsoft Edge, I can't find the download on the directory. I tried changing the download destination but again, the file is nowhere to be found. If I try to open the file from the download tray of MS Edge some pop-up window telling me that I need authorization or some kind of like that to open the file.

I also found these type of folders on my User:

defaultuser0

Marie

Public File

Please help me, and tell me what to do.