the problem can be that the uninstaller does not remove all folders, files and registry. if you can find all of those and remove them then reboot your computer. it should be all set to reinstall flash player but just in case it’s too hard for you to do. here is an uninstaller that will find and remove all of the files, folders and registry for you.
Click here to download the Wise Program Uninstaller
also the post where the flash version you need.