Please select the Error Code you received :
Before submit your Ticket
Before submit your Ticket; If you received "Error Code: 0x800F0805" that means your key is still valid but you are trying to activate your Windows 10 Home with a Windows 10 Pro key after inputting the key please restart your computer, it will upgrade itself even if you received an error message. After restart you can complete your activation as well.
Before submit your Ticket; If you trying to activate your Windows 10 Home with a Windows 10 Pro key after inputting the key please restart your computer, it will upgrade itself even if you received an error message. After restart you can complete your activation as well.