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HP Recommended
L5Y50EA#ABV
Microsoft Windows 10 (64-bit)

How can I buy an orginal MS  upgrade key from Win10 home to Win10 pro? I tried buying the key from MS Store but the system gave me the following error:

"We're having trouble processing your payment and we'd like to get it sorted out."

No one has come back to me from MS.

Is ther any other method to buy the upgrade license key?

Could you please help?

With best wishes and regards

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