I have lost my product key of windows7 PRO during upgrading windows 10. My product key label below the laptop is not there now and recovery disk is corrupt and damaged.
Is there any way to get it back. It was OEM version. I have purchase bill of my laptop.
Since there is no downloadable Windows 7 Reinstallation DVDs and the Microsoft Software Recovery Tools blocks Windows 7 OEM licenses you are best to use Windows 10130 Insider as an intermediate to get Windows 10 Pro (10240).
Philip_Yip
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Posted August 10th, 2015 09:00
Is Windows 10 installed and activated?
Windows 11 Installation Guide
Windows 7 Installation Guide