Trouble with MS Word and Excel

[htdove]

Hi, I am using a Window 7, why everytime i open the MS Word and Excel they always ask me
to insert the product key ? When I insert the product key , it always says incorrect key. I am
sure i insert the right product key? Please tell me what i have to do . Thanks.

[Salmon Trout]

1. If you are asking about MS Office on Windows 7, why did you post in the DOS section?
2. Where did you get the product key?

[DaveLembke]

Some systems are being sold with trials of Office products and when the trial is up you need to use a key. The key is not same as the OS key. You will have to buy from Micro$oft a key to activate it if that is the case.