Suddenly strange desktop background, how to fix?

So
5

I'm not very familiar with technology, so I hope that I will now explain everything clearly and correctly. I got myself a surface pro 4 for my studies. Yesterday evening I started up my laptop (or notebook, I don't know) and wanted to watch a movie, but then suddenly I had a completely different background image. I definitely don't have this picture on my phone or anywhere on my laptop. But I know the person from university.

I then simply changed it again, but now I wanted to connect to the laptop again and then there was another background image. What could it be and how can I fix it?

Pa

Could it be that you have set the picture to change regularly?

With me, for example, there's something different every day.

Keyword: slide show

So

No and that's someone I know and I haven't saved the picture anywhere, I've never seen that before.

ho

I had something like that too, it was a kind of virus that someone could use to control my PC, it also wrote messages with text files. But it doesn't have to be the case with you

Lu

. It's up to the registry. Go to this path HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Wallpapers

then you can remove the background there which you do not want to have.

Pa

Then I would talk to him.