Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Mysterious CPU usage


28 Mar 2013   #1

Windows 7 Professional, Service Pack 1, 32-bit
 
 
Mysterious CPU usage

When I get offline and stop all activity on my computer, memory usage goes down, but CPU usage goes up. Why is that?

My System SpecsSystem Spec
.

28 Mar 2013   #2

Windows 7 x64 and numerous virtual machines
 
 

Hi bradg and Welcome to Seven Forums.
Could be lots of reasons mainly harmless. Your antivirus maybe scanning, the drive might be defragging as you are "idle". How high does it go? 25 to 30% can be normal if the computer is "housekeeping" but if it contunues for hours you may have a virus or malware or a program running in the background that you are unaware off.
Post a screen shot of your task manger screen and we'll take a look.
My System SpecsSystem Spec
28 Mar 2013   #3

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x86 Service Pack 1 - Linux Mint Mate 14 x64
 
 

Please also attach a msinfo32 file, just to check which programs are booting at Startup.

Start > Type: msinfo32 > File, Save

Once you saved the file, then you will need to follow these instructions to upload the file in your post:
Note   Note
msinfo32 will not contain any personal information or product keys.
My System SpecsSystem Spec
.


28 Mar 2013   #4

Windows 7 Professional, Service Pack 1, 32-bit
 
 
Mysterious CPU usage

Many thanks. It's moderate usage, up from the 10% range to the 40% range, and it soon calms down, so I'm not complaining, just curious.


Attached Thumbnails
Mysterious CPU usage-1.jpg   Mysterious CPU usage-2.jpg   Mysterious CPU usage-3.jpg   Mysterious CPU usage-4.jpg   Mysterious CPU usage-5.jpg  

Mysterious CPU usage-6.jpg   Mysterious CPU usage-7.jpg   Mysterious CPU usage-8.jpg   Mysterious CPU usage-10.jpg  
My System SpecsSystem Spec
28 Mar 2013   #5

Windows 7 x64 and numerous virtual machines
 
 

Nothing looks wrong to me. Your PC is just housekeeping. When you are not using it it will do tasks and use the CPU to carry them out. This can happen after updates or closing programs. To improve performance you might want to add some memory so you have a total of 4GB ram.
My System SpecsSystem Spec
28 Mar 2013   #6

Windows 7 Professional, Service Pack 1, 32-bit
 
 

Thank you!
My System SpecsSystem Spec
Reply

 Mysterious CPU usage




Thread Tools



Similar help and support threads for2: Mysterious CPU usage
Thread Forum
Frequent unresponsiveness, 100% hardware disk usage, 0% software usage Performance & Maintenance
Solved Mysterious new service! Performance & Maintenance
Solved System Restore - Current usage exceeds Max Usage Backup and Restore
Mysterious Vanishing HDD Hardware & Devices
Mysterious START Orb Backup and Restore
Windows 7 random CPU usage and high physical memory usage!!! Performance & Maintenance
mysterious issue General Discussion

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 04:08 PM.
Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App
  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33