thank you very much for your question. My name is***** am a computer expert since 17 years and I will be assisting you today.
Unfortunately and even more with a freshly installed Windows 7, this issue is normal. It is because Microsoft has left only a few servers available for the Windows 7 updates, hence the search for updates (by my experience as well) can take up to 48 hours with a fresh installation, since there are over 1000 updates to download. You´d just have to let it search until it found all updates. An alternative is to install a special pack that includes most updates until April of this year. Then the rest of the updates will be found a lot faster via Windows Update, but it is rather complicated to install unfortunately.
May I remotely connect to your computer please, so that I can do it for you while you can relax and watch me doing it on your screen? This is an optional service with a one-time flat fee, regardless of how long it will take me to fix the problem. We can resume it at any time, without additional costs. It also is safe, as you will be watching your screen and we will chat there as well, so that you will always know what I will be doing next while fixing the problem.
Thanks for your patience and best regards,