Windows Vista x64 & TrustedInstaller.exe Pegging my Processor!

After installing all the bits into my new computer, I found that Windows Vista x64 was unusable. After looking at what processes were running, a process called TrustedInstaller.exe was eating up 99% of the processor time and slowing the whole thing down. After doing some digging around, it seems the problem is caused by a combination of the Core 2 Quad processor (I have the Q6600 2.4GHz), Windows Vista x64 and the fact I was running 4GB RAM. I haven't managed to find a fix for it, but I have found a workaround. I have simply removed one of the 1GB RAM modules and now it's running fast. Very, very fast! It's annoying only being able to run 3GB instead of the full 4GB but at least it's a start.

Update: I've found a fix for this issue.

11 comment(s) so far

admin avatar

Damn, that´s exactly the set-up I planned to purchase. And there´s no reason to install x64 with 3GB only.

admin avatar
RichMercer wrote on January 23, 2008

If you use Virtual PC I'd disagree. It is so fast on x64. Furthermore, I'm hoping that the problem will soon be fixed so I will just pop the memory back in and not have to install x64 already. :)

admin avatar

You might need this patch: support.microsoft.com

admin avatar
RichMercer wrote on January 23, 2008

Thanks Nick, but sadly that didn't work for me. :(

admin avatar

Just keep updating, they will fix that very soon.

admin avatar
RichMercer wrote on January 23, 2008

Woohooo, I've found a fix. I've just tried a beta BIOS release and that's nailed it. I'm now running all 4GB with no problems. :)

admin avatar
Ian Irvin wrote on January 23, 2008

Thats the same thing I'm running and I too am getting loads of problems, alot of apps and games won't boot up and its just generaly slow, I'm glad you found a fix, any chance you could post it?

admin avatar

Sure, install the BIOS update on this page. global.msi.com.tw/index.php

 avatar

thanks rich, very usefull..

 avatar

hello, this is my first time i visit here. I found so many interesting in your blog especially on how to determine the topic. keep up the good work.

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Nice Thank you

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