Solved svchost.exe w/7000+ threads 30%+ processor usage.

stoltzVI

New member
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So.
Very fascinating problem currently taking place on my computer. I have just done a complete factory reset, and just finished applying all updates to windows.
After having installed all the software i usually use everything seemed just fine, unfortunately things have now turned completely sour.

Due to some sound-stuttering issues i downloaded a program called LatencyMon, now i`m not saying it`s implicated, just that it was the last program, and the only program i`m completely unfamiliar with, to have been installed on this computer. The program had a hard time quitting, i was forced to force quit it, and did a reboot.

Upon finishing this reboot i logged on and got to spend 30/50 sec watching a black screen (a first for this computer post-logon) and saw a program window? in the bottom left corner of my screen. After boot the machine was slow and a look in Resource Monitor showed that svchost.exe (LocalServiceNetworkRestricted) was churning along with 7000+ threads and spending 30+% of my cpu. I tried to stall the service and this caused my sound to hang (background .ogg file in winamp).

I did another reboot, i did not get the same problem with svchost.exe, but i discovered that the firewall in f-secure had malfunctioned, prompting another reboot.
Whereafter the same problem as before manifested itself again. svchost.exe (LocalServiceNetworkRestricted) operating at the same level, this time i also noted the ridiculous Disk I/O which seemed to be running through my entire harddrive writing and reading from all files on the harddrive.

Not being knowledgeable about these matters it made me feel somewhat insecure.... :p
So this post went into security. If there`s another explanation then feel free to have it moved.
 

My Computer

Computer Manufacturer/Model Number
Lenovo
OS
Windows 7 Professional x64
[WRONG] My bad, turns out it was SuperFetch doing its magic. No worries.
 
Last edited:

My Computer

Computer Manufacturer/Model Number
Lenovo
OS
Windows 7 Professional x64
dhcp client

So. I thought the problem had disappeared, but it turns out that the culprit is the "dhcp client" service, not superfetch. It spawns more threads than it seems permissible to poke a stick at. I forgot to save the Process Monitor output for svchost.exe, but i will the next time the problem rears its ugly head.
As of now i`m satisfied with just killing the entire process tree in Resource Monitor, but that is hardly a sophisticated or permanent solution.

Oh, anybody have a clue as to how to get this moved to Network & Sharing or Crashes & Debugging. It doesn`t seem to belong in this subforum.
 
Last edited:

My Computer

Computer Manufacturer/Model Number
Lenovo
OS
Windows 7 Professional x64
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