This is mainly due to an older version of falsh player, a clean uninstall and clean up the registry, flash player can be installed again.
specific method:
1 control panel unloading inside flash player uninstaller
2 C: \ WINDOWS \ system32 \ Macromed \ Flash folder deleted
3 regredit in the registry, delete the HKEY_LOCAL_MACHINE \ SOFTWARE \ Macromedia
4 official flash player to download
Reproduced in: https: //my.oschina.net/u/204616/blog/545500