Windows 10: Cannot Activate Windows 10 Pro from Windows 10 Home installation

I had Windows 10 Home installed in my old computer. I moved the hard drive to my new computer and learned that it was only valid once per motherboard. I bought a Windows 10 Pro key online and tried to activate it. It didn't work, so I went through the activation troubleshooting. Still didn't work, so clicked "Get Help" on the Activation page. I followed all of the steps from the robot, but it didn't work. I clicked to sign in, but when I clicked "Call me back" to speak to a person, I got a spinner then this error:


An error occurred

Please try your request again later

CV: QUHEysL8dEa7OmXudEaPDQ.0.53


Also, for your reference, when I tried to change the product key via the Activation page, I got this error:


The product key you entered didn't work. Check the product key and try again, or enter a different one. 0xc004f050


Summary / Specifics:

- The key I'm trying is for Windows 10 Pro.

- Troubleshooting doesn't work.

- I get an error above when trying to change the key.

- I get an error above when trying to contact a human at Microsoft.

- System Information:

OS Name Microsoft Windows 10 Home

Version 10.0.19041 Build 19041

Other OS Description Not Available

OS Manufacturer Microsoft Corporation

System Name [REDACTED]

System Manufacturer Micro-Star International Co., Ltd.

System Model MS-7B17

System Type x64-based PC

System SKU Default string

Processor IntelR CoreTM i7-9700K CPU @ 3.60GHz, 3600 Mhz, 8 Cores, 8 Logical Processors

BIOS Version/Date American Megatrends Inc. A.A0, 8/14/2020

SMBIOS Version 2.8

Embedded Controller Version255.255

BIOS Mode Legacy

BaseBoard ManufacturerMicro-Star International Co., Ltd.

BaseBoard Product MPG Z390 GAMING EDGE AC MS-7B17

:)

 

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As for getting rid of Windows, delete the Windows folder.

 

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How long did you wait for activation?
When I re-installed with a fresh install... it took a few hours to sync and activate.
However, it did, finally, activate.