Windows activation error 0x87e10bc6

Amin2234 171 Reputation points


I have a MSI laptop with original Windows 10 installed for more than 5 years.
I decided to re-install a fresh Windows 10 because the older one was slow.

Before re-installation I copied the license key in a notepad file to add it in new Windows.

But when I want to add the license on new fresh Windows it does not accept:


I did activation troubleshooter, the same error:


finally with command:

slmgr /ipk
got error:

Error: 0xC004F050 The Software Licensing Service reported that the product key is invalid

Windows 10 Setup
Windows 10 Setup
Windows 10: A Microsoft operating system that runs on personal computers and tablets.Setup: The procedures involved in preparing a software program or application to operate within a computer or mobile device.
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5 answers

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  1. Nelson Bravo 21 Reputation points

    After a lot of searching, and trying different configurations the only simple thing that worked for me was:

    Change the region to my REAL country where I had connected the pc. so if you have a VPN or something you will have to change to the region that corresponds.

    hope help someone.

    4 people found this answer helpful.

  2. Limitless Technology 39,461 Reputation points

    Hello again @Amin2234

    As I can see from the screenshot, you have installed a Windows 10 Home Single Language version of Windows 10. What was the version of Windows 10 before you reinstalled? I looks like the key you were using is not valid for the current install. For example: Windows 10 Home and Windows 10 Home Single Language require different keys.

    you can download other versions here:

    Best regards,

    1 person found this answer helpful.

  3. Sarat Chandra 581 Reputation points
    0 comments No comments

  4. Limitless Technology 39,461 Reputation points

    Hi there,

    Usually, this might happen if the servers are busy and they cannot communicate with your PC.
    Alternatively, you can try Phone activation or activate with help of chat support , this might help you with the process

    Hope this answers all your queries, if not please do repost back.
    If an Answer is helpful, please click "Accept Answer" and upvote it : )

    0 comments No comments

  5. Kapil Arya 7,776 Reputation points MVP


    See if this fix helps you:

    Let us know if this helps!

    Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.

    0 comments No comments