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#11
If I'm translating correctly it means you have 3 more rearms of 30 day activation timeout, which you don't need to use if you have a Product Key to insert.
Retail Win7 can be reinstalled and reactivated as many times as you want. However Builder's OEM must remain on the same mobo which is why it gets such a price break.
You did buy Builder's OEM, correct? And it is activated on the current install? There should be no problem reactivating after clean reinstalling.