I'd look into any hardware connected and try swapping it one-by-one. I wouldn't have suggested this if it wasn't for the article below: [Corsair keyboard bug m

I'd look into any hardware connected and try swapping it one-by-one. I wouldn't have suggested this if it wasn't for the article below: [Corsair keyboard bug makes it type on its own, no malware involved](https://www.bleepingcomputer.com/news/security/corsair-keyboard-bug-makes-it-type-on-its-own-no-malware-involved/ https://www.bleepingcomputer.com/news/security/corsair-keybo...)