Windows 10: Windows 10 Pro suddenly de-activated?!

I was gonna edit my wallpaper, I didn't notice the "Activate Windows " I want to click to my favorite wallpaper but I can't it won't let me, I saw the activate Windows and I clicked it of course, I saw "activate windows" and I said "what the heck is going on?" I don't know if it's a physical product key, I don't know much about computers, it's not me that bought the PC and I lost my receipt I was given a troubleshoot I clicked it and it said "internet connection issues" it's not that what the computer saids I just simplified it i don't know what is the result due to my potato internet, is

:)

 

Windows 10 Activation Error: 0xC004F034

Hi Greg,

This error code is usually caused by a problem with the product key. For better assistance, we would like to clarify how you got the Windows 10 Pro? Is it supplied by a company?

As an initial troubleshooting step, we suggest that you run the Activation troubleshooter and try activating Windows 10 Pro again. To run the Activation troubleshooter, follow these steps:

• Click the Start button and select the Settings
  icon.
• Choose Update & Security from the list.
• Select Activation in the left pane of the window.
• Click Troubleshoot.

If your Windows 10 Pro is supplied by a company, we recommend that you get in touch with your organization's support for assistance with the activation.

We'll be waiting to your reply.

 

Can't upgrade from Windows 10 Home to Pro

Hi Bill,

Thank you for posting your query in Microsoft Community. We apologize for the inconvenience caused and will assist you in the best possible ways.

I suggest you to download and create an installation media for Windows 10 Pro form the link provided below:

Download Windows 10

After the installation media is created, suggest you to upgrade to Windows 10 Pro from the installation media. When the upgrade asks for product key, enter the product key purchased for Windows 10 Pro. If it does not accept, suggest you to skip the activation
step. After the Operating System is installed, suggest you to activate by phone by following the steps below:

• Press “Windows key + R” and type “slui 4” and press Enter.
• Select the Region from the list and click Next.
• Call the Toll-Free number provided on top and can activate via phone.

Hope this helps. Keep us posted on the status for further assistance.

 

Windows 10 Pro suddenly becomes not activated after upgrading to (10.0.17763.55)

(message on 8 Nov 2018) My Windows 10 Pro was upgraded from Win 8 Pro some years ago. It had been activated and signed into with a Microsoft account. I can see my Windows 10 Pro in the device list of my Microsoft account.

Suddenly I found that my Windows is now not activated with error code: 0xC004C003. Activation Troubleshooting said "We found a Windows 10 Home digital license for this device running Windows 10 Pro." It happened after a few days I installed Windows Update
for (10.0.17763.55)!

Anyone knows what is wrong?

(status updated on 9 Nov 2018) - Wow. After a day, my Windows activation really comes back. Waiting is the best solution for that