Microsoft has officially "sold out" of the Windows 7 Home Premium Family Pack upgrade in the US. For the unfamiliar, the Family Pack offered a discount on three Windows 7 upgrade licenses ($150 for the entire Family Pack versus $110 for Home Premium upgrade one license – a $180 savings).

When Microsoft first announced its plan to provide a Family Pack upgrade, the company said it would be a limited time offer, so this doesn't exactly come as a surprise. However, the news has left many folks to wonder whether the Family Pack is actually sold out or if the deal was simply ended. Some believe Microsoft will once again ship the Family Pack, but the software giant has not confirmed anything.

After attempting to get the scoop from Redmond, Ed Bott received a vague response. "The Windows 7 Family Pack was introduced as a limited time offer while supplies last in select geographies. Response has been very positive and in some cases, the offer has sold out. Customers interested in upgrading their PCs should purchase Home Premium, Professional or Ultimate upgrade products."

In the meantime, you can still purchase the Family Pack at a premium through sites like eBay and Amazon and still save a bit of cash.