Which OS and browser you are using and who is saying that you already have flash player installed?
Flash Player when installed integrates itself with the browser[Except Google Chrome] to run flash content.Before answering your query we require some basic information:
1. you are using Flash Player on Browser?
2. you are using Flash Player on Operating System?
3. and Where do you see message Flash Player is already installed?
I TOO HAVE A SIMILAR ISSUE.
FLASH PLAYER IS NOT WORKING!THIS HAS BEEN AN ISSUE SINCE PURCHASE OF THIS LAPTOP(HP ENVY).
IT SAYS ITS INSTALLED ,THEREFORE WON'T LET ME DOWNLOAD IT. BUT,WHENEVER I NEED TO TRY TO ADD TO MY WEBSITE, IT SAYS I NEED FLASH PLAYER TO BE INSTALLED! AFTER CHECKING STATUS IT SAYS FOR PROBLEMS TO "ENABLE"AND TO DISENGAGE ACTIVE X.
I HAVE DONE THESE THINGS MULTIPLE TIMES,YESTERDAY ALONE I SPENT 4 HOURS WORKING ON IT,BUT I HAVE FOLLOWED THESE PROCEDURES MULTIPLE TIMES SINCE THE FIRST WEEK I HAD THIS LAPTOP INCLUDING A COUPLE OF 'SOFT' REFOREMATTING!
EVEN THOUGH IT TOLD ME I WOULD HAVE TO RE=INSTALL ADOBE FLASH PLAYER AFTER,BUT,AS I STATED,IT WON'T LET ME-TELLING ME ITS STILL THERE-I TOO CAN'T FIND IT IN MY PROGRAMS!!!!!!