AI PCFind the culprit app
Shows the apps and background tasks using the most CPU, with usage and how long it has lasted.
CPU at 100% — who's using it?
When the CPU is pinned at 100%, everything slows down.
Instead of just the number, you see which app is using how much, since when, and whether that's normal.
What it does
Saturated or one-core bottleneck
Tells a fully loaded CPU apart from a single-thread bottleneck where only one core is maxed out.
Is heat slowing it down?
If clocks drop under load, it checks whether heat or power settings are the reason.
Compare the slow moment
Press “Why is it slow?” to compare right now with normal and see what changed first.
How to use it
- 1
Open the CPU card on the dashboard.
- 2
Check the top apps and the explanation of the cause.
- 3
Confirm and run the suggested action.
FAQ
Does 100% CPU mean my PC is broken?
Usually not. It's most often a specific app or a background job such as updates or an antivirus scan. Check what's using it first.
Will it close programs on its own?
No. Closing or restarting an app only happens after you confirm it.
Get started for free
After installing, click the tray icon and your first diagnosis is already done.
Every change runs only after you confirm it, and can be undone.