Secondly, find the "Command Prompt" in the "Windows System" folder of the application list, and click Open.
Third, the system jumps to the Command Prompt window.
4. Then, enter "slmgr.vbs-ipkw269n-wfgwx-yvc9b-4j6c9-T83gx" in the window.
Fifth, win 10 system finally became a professional version, and the problem was solved.