# What's your problem Microsoft?!

**URL:** <https://forum.kirupa.com/t/whats-your-problem-microsoft/208102>\
**Category:** Uncategorized\
**Created:** [November 24, 2006, 11:06pm UTC](https://forum.kirupa.com/t/whats-your-problem-microsoft/208102 "2006-11-24T23:06:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![danulf](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/danulf/32/555_2.png) [@danulf](https://forum.kirupa.com/u/danulf)\
**Post date:** [November 24, 2006, 11:06pm UTC](https://forum.kirupa.com/t/whats-your-problem-microsoft/208102/1 "2006-11-24T23:06:57Z")

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Since when do you have to buy a copy of windows for every machine you have in the house? I reformatted my computer yesterday and used the family’s winXP key when I installed windows again. I updated it today, rebooted and not it says it’s not a valid copy of windows!

Also, the key has been reported stolen! How?! Ⓜ

We’ve always used the same windows cd on our computers, maybe we missed something, but it has worked for several years now!