

This should fix any missing files, and update you to the latest version. Click on this and if it updates, you will have to restart your computer.

(This is a possible solution for most users) I have found that inside the folder C:\WINDOWS\system32\Macromed\Flash (WinXP Home/Pro) (Computer > C: Drive > Windows > System32 > Macromed > Flash for Vista) there should be a file named FlashUtil10b.exe (IF NOT YOU SHOULD UPDATE AS SPECIFIED!) (or FlashUtil10a.exe or for older versions something similar depending on your version), which is the update utility for flash player.
