WSUS - Auto-approve only "Needed" updates
There is a third party tool called WSUS Smart Approve which is doing exactly that.
However, if you just need to auto-approve everything that is needed, consider not using WSUS at all but just let the clients download everything off the web. Bandwidth is cheap anyway and you may alleviate any contention problems by using a simple HTTP caching proxy which would be way easier to administer than WSUS.
your solution is not good for each.... (download all updates direct from web) if clients is in separated network wsus is solution for updating clients PC/servers