Windows 7 - Reinstalling Windows 7 again

Hey Dudes

Really quick and hopefully simple question here.

I bought Windows 7 today and I am having some issues that reinstalling may correct. Now if I reinstall again, enter my product code, install and get into windows and activate again, will I have any issues?

Remember, I have already activated and its been confirmed. If i try and reactivate will it just accept it again without me having to phone microsoft or anything?

Also I understand that there is a few posts already about this but none (that I saw) asked about actual activation.

Thanks in advance

Scott

You can run a repair install which is an Upgrade over your Windows 7 install. But that also requires you to reactivate which is no problem and should be over the internet when you click the activation link on Computer>Properties page. If not the call is a painless exchange of numbers, but rarely necessary.