#copied from https://eksith.wordpress.com/2015/08/06/how-to-remove-flash-from-windows-10/#comment-58104 r-burt
# take ownership
takeown /f C:\Windows\SysWOW64\Macromed\Flash\*.*
takeown /f C:\Windows\System32\Macromed\Flash\*.*
# extend access
cacls C:\Windows\SysWOW64\Macromed\Flash\*.* /E /T /G %UserDomain%\%UserName%:F
cacls C:\Windows\System32\Macromed\Flash\*.* /E /T /G %UserDomain%\%UserName%:F
# delete
del C:\Windows\SysWOW64\Macromed\Flash\*.* /Q
del C:\Windows\System32\Macromed\Flash\*.* /Q
rd C:\Windows\SysWOW64\Macromed\Flash
rd C:\Windows\System32\Macromed\Flash
rd C:\Windows\SysWOW64\Macromed
rd C:\Windows\System32\Macromed
del C:\Windows\SysWOW64\FlashPlayerApp.exe
del C:\Windows\SysWOW64\FlashPlayerCPLApp.cpl

#remove Macromedia folders in same way - Strangely added here: http://strangelyperfect.tv/20188/remove-flash-windows-10/
takeown /f C:\Windows\SysWOW64\Macromed\Flash
takeown /f C:\Windows\System32\Macromed\Flash
cacls C:\Windows\SysWOW64\Macromed\Flash /E /T /G %UserDomain%\%UserName%:F
cacls C:\Windows\System32\Macromed\Flash /E /T /G %UserDomain%\%UserName%:F
rd C:\Windows\SysWOW64\Macromed /S /Q
rd C:\Windows\System32\Macromed /S /Q