ok weird one something is choking my PC. loading screens take forever, textures pop in late, and an open-world RPG stutters constantly. task Manager:

Disk 0 (C:) Active time 100%
Not responding
100% disk, and the response time numbers look scary... i suspect a cloud sync app, but Im not suree how to prove it.
I already restarted the PC and closed everything I could find in teh system tray. disk usage dropped for a moment, then went straight back up as soon as teh game loaded a new area. any ideas??