Make sure that any outstanding Windows Updates have been completed and installed.
Run the Windows Activation Troubleshooter on the Activation page.
Restart your computer and retry activation.
Use the toll-free automated phone activation service by clicking Activate by Phone on the Activation page. If you do not see this option, you can load it by typing into the Windows Search Bar SLUI 4 (must have a space before the 4), hit enter, it will first ask for your country/region, then follow the on-screen instructions.
How To Make A Custom Windows 10 ISO In this video, I go over downloading the OFFICAL Windows 10 1909 Version and modifying it using the MajorGeeks Toolkit. All the tools and downloads are free and fr...