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Thread: Perflib_Perfdata dat files in temp folder

  1. #1
    Join Date
    Apr 2009
    Posts
    60

    Perflib_Perfdata dat files in temp folder

    Perflib_Perfdata.dat Files stored in temporary folder in my windows xp system. The problem i can't delete/use that file, when i try to delete it says file file is in use. Does anyone know what causes this issue and how to fix it?Any help will be extremely appreciated.

  2. #2
    Join Date
    Apr 2008
    Posts
    3,297

    Re: Perflib_Perfdata dat files in temp folder

    These files are generated by processes in the normal course of operation. Go into System Properties, Advanced, environment variables, system variables and search for environment variables for TEMP. Click 2 times on it, change the value of variable : % SystemRoot% \ TEMP; del / q% SystemRoot% \ System32 \ *. dat Perflib_Perfdata

  3. #3
    Join Date
    Jan 2009
    Posts
    318

    Re: Perflib_Perfdata dat files in temp folder

    Perflib_Perfdata.dat are the temp files folder can be caused by a number of applications that use a performance counter Nero 7 is one of them. They do not cause any problems and user need only worry if they accumulate - normally they are deleted at boot time.

  4. #4
    Join Date
    May 2008
    Posts
    2,684

    Re: Perflib_Perfdata dat files in temp folder

    Files with the name Perflib_Perfdataxxx.dat may accumulate under the %SystemRoot%\System32 folder, where xxx is a random number.These files are generated by processes in the normal course of operation; however, files are orphaned when you do not shut down a computer properly, such as by pressing the power button on a computer.

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