📎 AI Summary:
The discussion centers on upgrading from Windows 8.1 RTM to the final release. The original question asks if an upgrade is possible and how to do it, with initial responses indicating it’s generally not possible without a valid product key unless upgrading through the store. However, later comments reveal that users with TechNet or MSDN subscriptions could update their RTM version via Windows Updates, suggesting it’s feasible for some users. The overall sentiment is that upgrading is mostly limited to those with certain subscriptions.
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Thread Author #1
Is it possible to upgrade to Windows 8.1 final from RTM? How?
 

Jimbo22

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Aug 27, 2008
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The short of it....NO. Unless you have a 8.1 product key...the only way is to upgrade through the store.
 

Trouble

Noob Whisperer
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Nov 30, 2009
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Sure....
Most of us with either TechNet or MSDN subscriptions have been running Windows 8.1 RTM for a while now and today all you need to do is open control panel and run Windows Updates and that should bring your installation current with today's General Availability Release.
 

oswaldwark

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Mar 16, 2015
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I am using ans thanks for share