Is your user account an administrator or standard user type? Do you notice any difference if you disable UAC? Finally, after rebooting, do you see Flash Player listed in your Add/Remove programs control panel?
my account is an administrator, and yes after rebooting i still see lash Player listed in my Add/Remove programs control panel but its saying that it's a 32-bit version and my operating system is 64
What is 32-bit, the installed add-ons in Add/Remove Programs, or the Settings Manager in the Control Panel?
The Settings Manager is a 32-bit application; this cannot be changed.
If it's the installed add-ons, download the 64-bit uninstaller & installers from http://forums.adobe.com/thread/909550 and reinstall.