I've been using it for years on my HP Pavilion DV6. About a year or so ago, when I open Microsoft Word or another office program, it comes up with a prompt screen telling me it's not activated and to change the product key, error 0x8007232B. I looked on the back of my laptop (Windows 7) and it has a product key and so I typed that in but it says it still doesn't work. It still allows me to use Microsoft Office though, I just have to click "Close" but it's still annoying. Why is this happening and what can I do to fix it?