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CPU Usage 100% when Internet Explorer internet browsing

Symptoms

When you scroll through some Web pages in Internet Explorer, the CPU Usage meter in Task Manager may indicate CPU usage 100%. Because of this behavior, your computer will slow down or become unresponsive. For example, if you playing Mp3, a online game, while you scroll through a Web page, you may experience Audio Video Interleaved (AVI) file or audio distortion and your computer is freezing or crashing.

Cause

This behavior can occur on your computer if the use smooth scrolling option is enabled in Internet Option. Note:By default, Use smooth scrolling option is enabled in Internet Explorer.

Disable the Use smooth scrolling option in Internet Explorer. Follow these steps to fix 100% CPU Usage :

1. On the Tools menu in Internet Explorer, click Internet Options, and then click the Advanced tab.

2. Click to clear the Use smooth scrolling check box.

If the problem still exists, I suggest that you use some of the targeted software to lower cpu usage.

1. Download Registry Cleaner to fix cpu usage 100%.

There are many reasons for high cpu usage, try registry cleaner to fix 100% cpu usage. Optimize & speed up your pc is easily, safely and quickly.

Click here see which is best 100% CPU Usage Fixer .

Features and Benefits


Scans Registry, fixes PC errors and optimizes PC for better performance
Safely cleans, repairs and optimizes the Windows Registry
Seeks out and removes remnants left in Registry from failed installs, incomplete un-installs, and missing, obsolete, or corrupt entries
Built in scheduler fixes Registry issues as they arise

Registry cleaner will Automatically Speed up , Clean & Repair Your PC Registry of the following:
Fix Windows-Installer Errors
Repair DLL Files
Windows Startup Errors
Internet Explorer Errors
Runtime Errors
Prevents PC from Freezing or Crashing
Restore Correct File & Registry Paths Broken DLLs, OCX, and ActiveX Components
Fixes Corrupt Files
Stabilize Scripting Errors
Fix High Cpu Usage Problem

Download Reduce CPU Usage software Now.

2. Try Mozilla Firefox browser.

Because the spyware and adware or trojans will cause 100% or high cpu usage. If you do a lot of web surfing and are concerned about spyware and adware infecting your machine, consider using Mozilla Firefox instead of Internet Explorer. Currently, Firefox is much less susceptible to spyware than Internet Explorer for various reasons:

Firefox does not natively support ActiveX, a mechanism many spyware and adware programs use to infect a browser.
Firefox is not used by as many people as Internet Explorer, thus many spyware and adware authors have not targeted this browser.
As Firefox is open-source, it seems (as of now) that security holes are being patched faster. As of this writing, several known Internet Explorer security holes still exist that have not yet been patched.

3. Download Spyware and Adware Remover to remove spyware, lower cpu usage

Many people have 100% cpu usage problem but removing the registry keys noted here did not fix the problem -'high cpu usage'. Please check for spyware and adware. virus scan running, or some applications are running in the background.