Forum Discussion
Windows 11 disk usage 100% even with no apps open, very laggy
My disk usage hits 100% right after boot with no apps running. The system is extremely slow, even opening a folder takes a long time. Checked for bad sectors and disabled Superfetch, still the same.
Hey, yeah that’s super annoying 😅
So basically your disk goes 100% right after boot even when nothing’s open, and system becomes laggy… I faced something similar on my old Windows 11 setup, turned out it wasn’t just one thing.
What worked for me:
check Task Manager → sort by disk, sometimes “System” or Windows Update runs heavy in background
try disabling Windows Search indexing (this one helped me a lot honestly)
also check startup apps, some hidden stuff loads silently after boot
Not sure if it helps but sometimes it’s just Windows doing background tasks for few mins after startup.
I ran into this while setting up systems for YOUR BRAND NAME.
Does the usage stay 100% forever or settle down after some time?