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: CPU usage 100% after fresh Install

26 Oct 2011   #11

Windows 10 Pro x64

There are a lot of services connected with that svchost. Have you followed this tutorial ? Clean Install Windows 7

Also you can check your system with SFC. Or at least you can do a Repair Install.

If you don't want to do a clean install,wait for a while,I'll contact some of the experts at Guru Zone and someone will help you.

My System SpecsSystem Spec
26 Oct 2011   #12

Microsoft Windows 7 (6.1) Ultimate Edition ,Previously Windows XP

From the above I can say that I followed only clean install only . Thanks
My System SpecsSystem Spec
26 Oct 2011   #13

Microsoft Community Contributor Award Recipient


Quote   Quote: Originally Posted by danasegarane View Post
I was using Windows XP and downloaded Win7 from Msdn ,formatted the system and installed win7
Did your machine originally come with XP? What are your system specs? If your computer meets the minimum specs to run Windows 7 you could experience high CPU usage as well as slow performance in other areas.

Your choice of antivirus, other CPU or RAM intensive programs, etc could also have an effect as Windows 7 tries to "learn" and eventually manage your resources. To see how your resources are being allocated you could open the Resource Monitor from Task Manager or run a free program called Process Monitor by clicking the Run Process Monitor Now link at the bottom of their page.
My System SpecsSystem Spec

26 Oct 2011   #14

Windows 10 Pro x64

Yes,I almoust forgot about the specs. It will be good to feel your system specs.
System Info - See Your System Specs
My System SpecsSystem Spec
26 Oct 2011   #15
Microsoft MVP


Install Process explorer to drill down into those svchost services to find out which one is hogging your CPU, then google to find the solution which will likely NOT be turning it off.

At the same time work through the logs and System resources given here to find additional clues: troubleshooting steps

This will familarize you with basic troubleshooting and the specialty of tracing processes which is invaluable.

If you decide to give up, consider following these steps to get a baseline Perfect Reinstall

Please supply your System Specs in bottom left corner of post as they may apply.
My System SpecsSystem Spec
28 Oct 2011   #16

Microsoft Windows 7 (6.1) Ultimate Edition ,Previously Windows XP

I have updated my system spec
My System SpecsSystem Spec
29 Oct 2011   #17

Microsoft Community Contributor Award Recipient


From your system specs it looks like you're on the low end for RAM and hard drive. If you have 1280MB RAM I'm guessing your machine came with 256MB installed and you added another gig (1024MB) somewehres along the line for a total of 1280MB. Most people suggest 2GB (2048MB) for Windows 7. If your hard drive is only 40GB it's possible that your low RAM is forcing some programs to use virtual memory (a portion of your hard drive that is set aside to compensate for low RAM.) RAM is "electrical" and the hard drive is "mechanical". Mechanical is slower than electrical and more resources have to be used (like higher CPU.)
My System SpecsSystem Spec
29 Oct 2011   #18
Tarka Dal


put cannot use windows 7 with less than 2gb of ram.
My System SpecsSystem Spec
29 Oct 2011   #19

Windows 7 HP / Ultimate x64

^ I agree. Unless you are using Windows 7 Starter for basic computing.

These days, 4GB of RAM is generally recommended for new Windows 7 PCs. Although around 2-3GB of RAM and a discrete GFX card usually gets the job done.
My System SpecsSystem Spec
29 Oct 2011   #20

Windows 7 Ultimate x64, & Mac OS X 10.9.2

I can't see the first page as it crashes my phone app lol, but after reading the second page I'm going to say bad driver/incompatible with 7.

If you have 1256mb ram it means you've one 1gb and one 256mb, so its a rather old machine, and as older models with lower specs won't support 7 developers won't make drivers that do work

My System SpecsSystem Spec

 CPU usage 100% after fresh Install

Thread Tools

Similar help and support threads
Thread Forum
Heavy CPU usage then a shutdown on a fresh install of Win 7.
I've been trying to fix my brothers computer for a while now. Basically his CPU uses most of its power and ends up speeding up all the fans etc, then just shuts down. It used 70% of its power just opening internet explorer and when opening file explorer it went up to 100% and just shut down. I...
General Discussion
Fresh win 7 install on netbook 30% proc usage on System Interrupts.
As the title states I am having an issue with CPU utilization on a fresh install of windows 7 professional 32 bit on a Acer aspire D255 netbook. Basically the CPU always uses 30% of the processor even when idle and nothing else is going on for system interrupts. The problem exists with full...
Performance & Maintenance
Great System High Disk Usage fresh install
the laotop specs are as follows on windows 7 home premium Processor: Intel Core 3rd Generation i7 3630QM 2.4GHz (3.4GHz w/Turbo Boost) OS: Windows 8 Home Premium x64 & Reinstall Disc Display: 17.3 Inch Full High Definition (900p) LED Display with Anti-Glare Video: 2GB Nvidia GeForce GT 650M...
Performance & Maintenance
Windows 7 fresh install, incredibly slow and 100% CPU usage
I just installed a completely fresh windows 7. I wiped and formatted the hard drive prior to installation. For some reason the install took like 7 hours. And afterwards, it still runs horrifically slow. I checked task manager and it shows my CPU usage at 100%. I checked applications and processes,...
Performance & Maintenance
Ridiculously High CPU Usage on Fresh Install
Hi guys, I have had XP Pro for a number of years now, and I know full well that after a while it had always deteriorated and I would have to format. This happened for around the third time where it became nearly unbareably slow. I figured since it keeps happening, and to generally get with the...
Performance & Maintenance

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 08:08.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App