Technology in terms you understand. Sign up for the Confident Computing newsletter for weekly solutions to make your life easier. Click here and get The Ask Leo! Guide to Staying Safe on the Internet — FREE Edition as my thank you for subscribing!

Tip of the Day: Task Manager and CPU Usage

Task Manager

The Task Manager utility went through a major upgrade right around the time of Windows 8. The result is a much more powerful and useful program, so much so that it almost eliminates the need for a program I’ve recommended for years: Process Explorer. Today’s tip is just one example of that.

Perhaps one of the most common questions people have about their computer is, “Why is it so slow?” Often, it’s because one program or another is making excessive use of the CPU, slowing down everything else as it does so. We can use Task Manager to see which program that is.

Right-click on the clock in the taskbar and click on Task Manager. The default view will be pretty boring, but if you click on the More details link at the bottom, things get interesting very quickly. You’ll see lots of processes listed; the list is updated in real time, once a second.

Click on the CPU column heading and the list will be sorted by CPU usage. If the total CPU usage is high (say over 75% or so), you’ll see which programs contribute to that usage floating to the top of that list. (If everything’s listed at “0%”, click that column heading a second time to sort the list in the other direction.)

With that knowledge, you can make some decisions. The slow-down might be due to what you’re doing on the computer just then. It might be transient, like an anti-malware scan, so perhaps waiting awhile would be the right answer. Perhaps it’ll simply give you another clue to research a less obvious problem.

But it’s all using a tool already built into your system — no additional download required.

Related Video

Posted: April 15, 2019 in: Ask Leo! Tip of the Day,
Ask Leo! Tip of the Day - Public
This is an update to an article originally posted October 11, 2016
Shortlink: https://askleo.com/2186
« Previous post:
Next post: »

Search Tip of the Day!

New Here?

Let me suggest my collection of best and most important articles to get you started.

Of course I strongly recommend you search the site -- there's a ton of information just waiting for you.

Finally, if you just can't find what you're looking for, ask me!

Confident Computing

Confident Computing is the weekly newsletter from Ask Leo!. Each week I give you tools, tips, tricks, answers, and solutions to help you navigate today’s complex world of technology and do so in a way that protects your privacy, your time, and your money, and even help you better connect with the people around you.

The Ask Leo! Guide to Staying Safe on the Internet – FREE Edition

Subscribe for FREE today and claim your copy of The Ask Leo! Guide to Staying Safe on the Internet – FREE Edition. Culled from the articles published on Ask Leo! this FREE downloadable PDF will help you identify the most important steps you can take to keep your computer, and yourself, safe as you navigate today’s digital landscape.



My Privacy Pledge

Leo Who?

I'm Leo Notenboom and I've been playing with computers since I took a required programming class in 1976. I spent over 18 years as a software engineer at Microsoft, and after "retiring" in 2001 I started Ask Leo! in 2003 as a place to help you find answers and become more confident using this amazing technology at our fingertips. More about Leo.

Leave a reply:

Before commenting please:

  • Read the article.
  • Comment on the article.
  • No personal information.
  • No spam.

Comments violating those rules will be removed. Comments that don't add value will be removed, including off-topic or content-free comments, or comments that look even a little bit like spam. All comments containing links and certain keywords will be moderated before publication.

I want comments to be valuable for everyone, including those who come later and take the time to read.