Task Manager shows how much processor capacity Windows 11 and individual applications are using. It is the quickest built-in way to check whether high CPU usage is contributing to slow performance, heat, or loud fans.
Check CPU usage in Task Manager
- Right-click Start and choose Task Manager.
- Select Processes to see CPU use by running apps and background processes.
- Select the CPU column if you want to sort processes by current usage.
- Open Performance and choose CPU for an overall utilization graph and processor information.
Interpreting high CPU use
A brief spike is normal when an application opens, Windows installs an update, security software scans files, or a demanding task is running. Sustained high utilization matters more than a momentary reading.
Do not end unfamiliar Windows processes simply because they appear near the top of the list. Identify the process and what it is doing first. If one application repeatedly consumes excessive CPU, save your work, close or update that application, and check its support information.
If overall CPU use remains high after a restart with no obvious foreground workload, review startup apps, pending updates, malware protection results, and any recently installed software before assuming the processor itself is defective.
Matt Jacobs has been working as an IT consultant for small businesses since receiving his Master’s degree in 2003. While he still does some consulting work, his primary focus now is on creating technology support content for SupportYourTech.com.
His work can be found on many websites and focuses on topics such as Microsoft Office, Apple devices, Android devices, Photoshop, and more.