Yo, while making paper wallets via Linux I accidentally put screenshots of them on my USB that had linux on it. I didnt know I was saving them on USB, and later when I was finished, and booted windows, and when I went to format USB (I needed it, its the only one near me now) , I saw screenshots there. I instantly deleted them and wiped Recycle bin. Windows was of course automatically connected on internet on startup.. For those wondering about screenshots, I used them to enlarge the wallets to I can print them better.
Are the wallets compromised or? I read about they kinda are the moment they are on OS that is connected to internet......