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Have installed adobe flash player and is in downloads, and my documents, but I can't open it due to conflicting instance. No idea what to do next

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Trying to open adobe flash player so my daughter can play educational games. Think it's downloaded ok, but it won't open due to 'conflicting instances'. I don't even know what that means!

Trying to open adobe flash player so my daughter can play educational games. Think it's downloaded ok, but it won't open due to 'conflicting instances'. I don't even know what that means!

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This is the full procedure for installing Adobe Flash for Firefox.

1.Download the Flash setup file from here:
Adobe Flash - Plugin version.
Save it to your Desktop.

2. Close Firefox using File > Exit
then check the Task Manager > Processes tab to make sure firefox.exe is closed,
{XP: Ctrl+Alt+Del, Vista: Shift+Ctrl+ESC = Processes tab}

3. Then run the Flash setup file from your Desktop.

  • On Vista and Windows 7 you may need to run the plugin installer as Administrator by starting the installer via the right-click context menu if you do not get an UAC prompt to ask for permission to continue (i.e nothing seems to happen).

See this:
http://vistasupport.mvps.org/run_as_administrator.htm