Jump to content

100% CPU Usage caused by Microsoft Update


Recommended Posts

The issue

The Automatic Updates service uses 100% CPU when it checks for updates when Microsoft Update is enabled.

The reasons

What triggers that behaviour is actually unknown. I think that it's related to the SFC being disabled.

The symptoms

Enormous slow-down when using the computer: applications take ages to load. This happens often even a few minutes after windows has booted. When you open the task manager you can see svchost.exe using 100% cpu.

When it doesn't happen

It doesn't happen to users using dual-core or dual-cpu machines because only 100% cpu of one core is used.

The Solution

There are various solutions on the web however they're just temporary fixes: the problem always comes back after a while.

Fortunately MS released a KB: you'll find the download link inside this post.

The Microsoft KB Article

For the patch look below, you can't obtain it from MS website


The patch


Please check it out with an antivirus before installing I take no responsabilities for that file: I scanned it with Kaspersky 6 and it didn't detect anything harmful however better be safe than sorry.

P.S. if somebody here can send me that patch for other languages (they must be requested to MS support) i'll include them in this post too.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...