Having listened to the arguments put forward by forum members, I have now split the single updates sticky into two. One contains virus definition updates, apparently we all use NOD32, so if anyone is using another AV program, we'd welcome your input to the thread.
The second thread now contains program updates, including NOD, Windows etc. This will be ongoing, the definitions thread will be re-started each month to keep it manageable.
I'd be grateful if members could live with the new system for a few weeks and see how it works. By all means post comments to this thread, but I will be waiting a while before making further changes to the system.