amd64 flash

I'm guessing that you're on Windows 8 or higher, and you're looking at either the Windows Update catalog, or one of the local stores for Windows Update files. 

On Windows 8 and higher, Microsoft controls the locations where the ActiveX Flash Player lives.  We can't write or delete files from those locations.  To remove the ActiveX version of Flash Player distributed by Microsoft, you can apply the appropriate Windows Update manually, or wait for them to push it out later as a mandatory update. 

Microsoft Update for Removal of Flash Player

https://support.microsoft.com/en-us/help/4577586/update-for-removal-of-adobe-flash-player 

For copies of Flash Player distributed by Adobe, you can simply download and run our uninstallers: 

Uninstall Flash Player - Windows:
https://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html

Uninstall Flash Player - Mac:
https://helpx.adobe.com/flash-player/kb/uninstall-flash-player-mac-os.html

If you still have questions, please write a super detailed question, include operating system and flash player versions, full path names, etc. 

Here's a guide on how to get a useful answer:

https://forums.adobe.com/thread/1195540

Thanks!