開啟IE,CPU使用率就100%滿載

  最近處理了一個少見的問題,當開啟IE後,iexplorer.exe的使用率就直接飆上100%,共試過下列幾種方式:

  • Disable all add-ons
  • Restore IE default settings
  • Clear all cookies and cache
  • Turn off antivirus software
  • Uninstall IE8,Downgrade to IE7
  • Open only one blank page
  • Enter Safe Mode

All of the above methods were ineffective,Then log in as an administrator,After logging in with a different account,The problem did not occur again,Then proceed to the UserProfile。

First, create a new UserProfile,Copy the items from the original profile in order,期間不斷的登出登入做測試最後終於找到問題檔UsrClass.dat此檔位於"C:\Document and Setting\ID\Local Setting\Application Data\Microsoft\Window"網路上對於此當的資訊並不多查到的僅是很籠統的說明是使用者設定檔但我將其改檔名後並無發現有任何設定值跑掉但卻可解決IE loading滿載的問題

  開啟IE造成CPU使用率滿載的原因有很多種,如果試過上面幾個方法皆無法解決的話,倒是可以對UsrClass.dat下手試試。

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