What browser are you using? Do you see any installation error? From where did you download the latest version of Flash Player? Please download the same from Adobe Flash Player Install for all versions and try installing it. If you still see error, then share the installation logs from your machine. To get the path of the Installation logs, refer to Where do I find the Flash Player installation log on Windows? Once you have collected the logs, upload the same and share the url of the uploaded logs here. To see how to upload logs you can refer to How to share a document .