Some people say disable antivirus, but I think it's more straightforward to go to this page and download the appropriate version (32 or 64 bit, operating system) of the flash installer: http://www.adobe.com/products/flashplayer/distribution3.html
Some people say disable antivirus, but I think it's more straightforward to go to this page and download the appropriate version (32 or 64 bit, operating system) of the flash installer: http://www.adobe.com/products/flashplayer/distribution3.html