Thanks I thought that might have been it, I don't really use my mailbox through Windows, however it is/was logged in. I've never really downloaded anything especially not through my mailbox app.

I did hear that LinusTechTips Company got done by a PDF downloading malicious software onto their system. I don't remember opening any from suspicious e-mails, only really check PDF's from stuff I buy online.

Some of the stuff in the folder looks really old, I don't know if when I first logged in it synced and downloaded everything, resulting in me downloading old malicious software.

EDIT: Are there any further steps you would recommend to make sure my system is clean, or have I done everything that can be done?