When I select "download now", I see a message "Preparing installation, please wait". When the activity strip finishes, nothing happens.
OS Name Microsoft Windows XP Home Edition
Version 5.1.2600 Service Pack 3 Build 2600
System manufacturer Gigabyte Technology Co. Ltd.
System model M68M-S2P
Processor x86 Family 15 Model 107 stepping 2 Authentic AMD ~2712MHz
Download the offline installer from http://helpx.adobe.com/content/help/en/flash-player/kb/installation-problems-flash-player- windows.html#main-pars_header
[topic moved to Flash Player forum]
I eventually found that Adobe had somehow, become blocked in Internet Explorer.
I unblocked the entry, downloaded and installed Flash Player.