The OP in that thread had the exact same issue me. RichardG867's post fixed it for me:
1. Fire up cmd.exe 2. AT HH:MM /INTERACTIVE cmd.exe 2. (where HH:MM is your Windows time + 1 minute) 3. Wait 4. On the new prompt, enter: 4. RUNDLL32 shell32.dll,Control_RunDLL desk.cpl 5. You will be presented with desktop properties for SYSTEM user. 6. Change the theme to classic using these desktop properties.
So yeah, it's solved. Thank you very much.
Last Edit: Feb 16, 2020 9:52:33 GMT -8 by clasurol