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while playing video error shows Flash srcnotfound, please guide

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while playing videos on ytpak and youtube it shows an error that flash srcnotfound please guide

while playing videos on ytpak and youtube it shows an error that flash srcnotfound please guide

Additional System Details

Installed Plug-ins

  • Shockwave Flash 26.0 r0
  • Adobe PDF Plug-In For Firefox and Netscape 17.12.20093
  • Google Update

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; rv:19.0) Gecko/20100101 Firefox/19.0

More Information

FredMcD
  • Top 10 Contributor
4075 solutions 56856 answers
I think you mean the Flash.scr file. Perform a System File Check to fix corrupted system files '''Win 7, 8, 10, Vista:''' https://support.microsoft.com/en-us/kb/929833 '''Win XP:''' https://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/system_file_checker.mspx?mfr=true Wiki - Windows 10 System File Check http://answers.microsoft.com/en-us/windows/wiki/windows_10-update/system-file-check-sfc-scan-and-repair-system-files/bc609315-da1f-4775-812c-695b60477a93
FredMcD
  • Top 10 Contributor
4075 solutions 56856 answers

Your System Details shows; Windows 7 Firefox 19.0

Why are you using this version of Firefox?

https://support.mozilla.org/en-US/kb/update-firefox-latest-version?cache=no Did you update Firefox to the latest version 55.0.3

Your System Details shows; Windows 7 Firefox 19.0 Why are you using this version of Firefox? https://support.mozilla.org/en-US/kb/update-firefox-latest-version?cache=no Did you update Firefox to the latest version '''55.0.3'''