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Acer 5338 Product Key is 'invalid'

I am trying to use Microsoft Office and enter the product key. The message appears to say that the product key is invalid. I called Acer who told me to restore factory settings which I did but the same thing happens

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  • imward Oct 06, 2009

    Thanks but I am really not that pc literate. I bought the laptop today and Windows Vista was pre-installed. On the laptop there is a Product Key code but when I try to enter it the message appears saying that it is invalid.

  • pcmatch May 11, 2010

    Do you have a retail/OEM product (MsOffice) and an activation key ? If it comes preinstalled with your operating system and you did not pay anything for it, you have probably a demo version and a limited time to use it. It requires to purchase a licence that comes with an activation key. Obviously, I suppose you do not use any illegal copy of MsOffice.



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As I supposed before you have a demo version of MsOffice that comes preinstalled with your operating system (Vista). It gets inactivated after several times of use until you provide a valid key. It means you have to purchase a licence. The key you have on the bottom of your laptop is, as it is written on it, the activation key for Vista. You can not use it to activate another porduct.
If you need a free software for your office work I suggest you to download and to install Open Office from the following link :

It is similar with MsOffice and the main difference is that you have to save your files in format compatible with MsOffice so that to be able to open them on other computers with MsOffice. The format file you will choose it from a list of option you have during the saving procedure (98/2000/xp .doc for Word or .xls for Excel or .ppt for Power Point).

Posted on Oct 07, 2009


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