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Windows 7: Windows Update run 100% CPU

18 Nov 2015   #1
paul1149

Linux Lite 2.8 x64 (full-featured, fast, rock-solid)
 
 
Windows Update run 100% CPU

I've got an Acer laptop that I just noticed runs 100% CPU when I try to update Windows. It has an AMD TF-20 processor, 1.6GHz single core, and 3GB of RAM. Not a fire-breather, but it should be adequate for normal tasks, and indeed it runs very well aside from this problem. This is a new bare-metal install of Win 7 HP x32.

I tried disabling WUDFSVC.exe. Nothing. I reset registry permissions, ran an update repair routine in Safe Mode, reset services to their default settings. Nothing.

Even now, 10 minutes after installing the one small Important update that was available, SVHOST.exe (driving WU service) is still forcing the machine up to 100%, with little else going on.

This machine must go out tomorrow, and this is a maximum pain. I am considering turning off WU, but would love to find an better solution.

Addendum: After the requisite reboot, Trusted Installer bounced around from 50-90% for a minute or two, with nothing else going on, which is pretty normal, and now the machine is back to idling at 1-2% CPU, which is how I have it tuned. It's simply the update process that is out of control.


My System SpecsSystem Spec
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18 Nov 2015   #2
paul1149

Linux Lite 2.8 x64 (full-featured, fast, rock-solid)
 
 

One thing I've done is set WU to run only weekly, on Tues afternoon. That should lessen the hit somewhat.
My System SpecsSystem Spec
18 Nov 2015   #3
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

I don't believe their is a problem. You systems hardware is just limited as you know.


AMD Athlon 64 TF-20 Notebook Processor - NotebookCheck.net Tech
Quote:
AMD Athlon 64 TF-20

The AMD Athlon 64 TF-20 is a single core processor for cheap laptops. It offers on core and an integrated dual channel DDR2 memory controller. Due to the old architecture, small level 2 cache and low clock speed, the TF-20 is as fast as a Pentium SU2700 at 1.3 GHz (which draws considerable less power).
My System SpecsSystem Spec
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18 Nov 2015   #4
paul1149

Linux Lite 2.8 x64 (full-featured, fast, rock-solid)
 
 

Shouldn't there be built-in priority limits to these services in Windows? I've come across this once in a while, but even most small netbooks don't do this as a rule.
My System SpecsSystem Spec
18 Nov 2015   #5
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

I don't real know if their are priority limits. I never had to worry about such things.
The system has such limited hardware I don't think it would matter.

You can't make a silk purse out of a pigs ear.
My System SpecsSystem Spec
18 Nov 2015   #6
UsernameIssues

W7 Pro SP1 64bit
 
 

My System SpecsSystem Spec
18 Nov 2015   #7
paul1149

Linux Lite 2.8 x64 (full-featured, fast, rock-solid)
 
 

Hi @UNI,

Great thinking. I use WSUSOffline, and the latest editions include that update, which works marvelously. It was installed, but I noticed at the page you referenced that installing a language pack would break it. So I uninstalled and reinstalled it to be sure, but to no avail. CPU was still maxed.

Strange though, now when WU is checking, it's not SVCHOST that's taking the lion's share of CPU, it's Trusted Installer. This is after all previous updates had calmed down.

But on the plus side, now the checking is very fast, so the high CPU should be livable. I'm going to reset WU to check daily, to keep the increments small. Maybe this reinstall did something and will be enough.

Thanks much!
My System SpecsSystem Spec
18 Nov 2015   #8
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

I know it a computer that is not yours or I would suggest doing manual updates.
That way the updates can be done when nothing else is being done.
When another person is using the computer I'm not sure you can trust them to do the updates.

I have lot of resources and I still don't do anything else on my system while I'm doing Windows 7 updates. It takes to long to find and fix update problems if their are any cause by new updates.
I don't need the head aches.
My System SpecsSystem Spec
18 Nov 2015   #9
paul1149

Linux Lite 2.8 x64 (full-featured, fast, rock-solid)
 
 

That's right. My goal is to make these things as bulletproof as possible. And generally it's amazing what even what is considered weaker hardware can do when it is set up well. I push it by including a graphics editor and the like, but aside from some slow opening times even they work well.
My System SpecsSystem Spec
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 Windows Update run 100% CPU




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