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I have a problem with a few services that take up more and more ram. I usually let the computer on without restarts and after a while some of the services take very big chunks.

The services are split into two svchost processes.

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Here they take up 100 MB each, but this goes up to over 500 MB each. The corresponding services are:

1st svchost process

  • EventSystem (COM+ Event System)
  • FontCache (Windows Font Cache Service)
  • nsi (Network Store Interface Service)
  • WdiServiceHost (Windows Diagnostic Service Host Service)

2nd svchost process

  • CryptSvc (Cryptographic Services)
  • Dnscache (DNS Client)
  • LanmanWorkstation (Workstation)
  • NlaSvc (Network Location Awareness)

The memory leak seems to be syncronous between the two processes, they seem to take up equal amounts of space. I tried disabling the services related, but since they are quite important ones it is hard to do so without screwing the whole system. I also did not find the source by my tests. I also tried flushing the DNS cache but this did nothing.

Does anyone have anything I can try except reboot Windows? The system is Windows 7 Professional 32 bit.

  • Try performing a clean boot and see whether you still get the same issue. – and31415 Apr 23 '14 at 13:14
  • Possible duplicate of superuser.com/questions/583737/… – Vadzim Jun 25 '14 at 16:43
  • I had a similar situation, and here is what I did to reduce the memory footprint of one instance of svchost.exe from 11GB to 0.1GB (the Win 7 machine has 12 GB RAM): Identified all services of the svchost.exe, and started to stop them one by one in alphabetic order. I was unable to stop WsServiceHost, fdHost restarts immediately after stopping. I watched the memory footprint after stopping each service. I saw it dropping only after stopping FontCache, and it dropped from 11 GB to 0.1GB. Since this happened only once, I am not ready to make any conclusion. – Hong Jan 8 '17 at 2:02

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