PresentationFontCache.exe uses 50%+ of my CPU

Anonymous
2009-12-19T17:26:51+00:00

PresentationFontCache.exe uses 50%+ of my CPU and therefore my 64 bit Windows 7 system runs even slower than it did with Vista.  Is there a fix other than killing it every time I boot up?

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Anonymous
2011-01-07T03:03:26+00:00

Go to C:\Windows\ServiceProfiles\LocalService\AppData\Local\ ,delete all Font*.dat and reboot it.

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Anonymous
2009-12-19T22:18:06+00:00

Hi,

the service PresentationFontCache.exe is only usefull if you use WPF (Windows Presentation Foundation) applications. If not, start services.msc and disable the service.

André

"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

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  1. Anonymous
    2014-07-22T07:49:34+00:00

    Despite following your path to the "Local" folder I still cannot find my fntcache.dat file. Any suggestions?

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  2. Anonymous
    2014-07-06T11:56:21+00:00

    Go to C:\Windows\ServiceProfiles\LocalService\AppData\Local\ ,delete all Font*.dat and reboot it.

    I was unable to delete because of "file in use".  I booted into Safe Mode and I was then able to delete the files.

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  3. Anonymous
    2014-06-17T19:45:10+00:00

    In Windows XP, the folder you're looking for is probably one of the following:

    C:\Documents and Settings\LocalService\Application Data

    C:\Documents and Settings\Administrator\Application Data

    C:\Documents and Settings<USERNAME>\Application Data

    In the last item in that list, you have to substitute <USERNAME> for your Windows logon username.

    For those who are having trouble finding the last AppData folder in that list on their PC, Press <Win>+<R> (That means press & hold the Windows key, and press R then release both keys.) and enter %AppData% then push OK.

    Using this approach, I found a file called

    C:\Documents and Settings\LocalService\Application Data\FontCache3.0.0.0.dat

    and deleted it. That seems to have taken care of it.

    Another approach to finding the file to delete (that might or might not work) would be to use Windows's Search for files function to search for Font*.dat (Use caution though, because this approach may turn up other results that may NOT be relevant, in addition to the files you ARE looking for.)

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