u/ImprovementForeign13

My less tech savy girlfriend got a discord message from one of her friends that was having a full on conversation with her asker her to try his new game that he finished, it didn't help that he coincidentally was actually working on a game, she said yes, clicked on a link, downloaded it and when she tried to open it windows defender flagged it as not safe, it was 3:00am and she was annoyed so she just spam tried to open it a couple times and she doesn't remember what she clicked if she accidentally allowed it to run, turns out her friend got hacked the same way and the dude having a conversation with her was the hacker. Her friend said as soon as he opened the file he got logged out of discord, this didn't happen to her but she's still worried that something infected her pc because all her accounts, her paypal, her bank is on there.

How can we know for sure that her pc is safe? This happened like 4 days ago and no sign of hackers yet, any help would be appreciated 👍