activation of Windows 8, said that the license will expire the

Hello!! I have a problem and I'm looking for a solution to this.
I bought a laptop from toshiba satellite C50 A 176 Windows 8 July 2014. everything was going well until the day wherever I noticed that a friend changed my product key.
now, Windows indicates the license expires July 2015. I'm looking now a solution ro reset the product key. If it is possible, then tell me how.

Note: I do not have either my Windows installation disc, or the original product key. Thank you

Former title: activation of windows 8

Retrieve your product key:
https://NeoSmart.net/blog/2014/Windows-10-embedded-product-key-tool/#more-3188
Designed for Windows 7 users, embedded Windows 8 and Windows 10, our product key tool will retrieve and display the Windows product key integrated in the BIOS or EFI setup, allowing you to store for security reasons or use it to reinstall Windows with a Windows installation to the official address image.

Press Windows key + R
Type: slui.exe 3
Press enter

Enter the product key and click next to activate via the Internet.

Tags: Windows

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