How do I get this OFF

Sorry for the bad picture I dunno how to take screenshots on my computer. I somehow got RAV on my computer and I tried using task manager, the uninstaller for the app and revo or whatever but it keeps telling me I have to reboot my laptop. There's no info anywhere about this issue and I did try to reboot it and nothing changed and now I'm scared lol. All comments about it on r/antivirus look sketchy imo, how do I get rid of this?

Sorry for the bad picture I dunno how to take screenshots on my computer. I somehow got RAV on my computer and I tried using task manager, the uninstaller for the app and revo or whatever but it keeps telling me I have to reboot my laptop. There's no info anywhere about this issue and I did try to reboot it and nothing changed and now I'm scared lol. All comments about it on r/antivirus look sketchy imo, how do I get rid of this?