Windows 10 Search is not working, can't even type the query

My problem is that Windows’ Start menu search isn’t working at all, when I press Start then start typing, nothing happens, the same thing also happen in taskbar search box and search icon. Cortana icon works, but since it is not available in my country it only display this ‘unavailable’ message. This has been going for the last 2-3 months since Windows 2004 is available, I installed fresh from ISO. My current Windows 10 is fully updated, and I didn’t touch registry or group policy editor at all.

Things I have tried:

1. ResetWindowsSearchbox powershell script, after restart, search is still not working
2. Installing Cortana from PowerShell, the command simply does nothing and outputs nothing, tried in administrator and normal PowerShell, tried copy pasting and typing by letter, same results.
3. Run search troubleshooting from Settings app, also rebuilding index
4. Creating a new user account, on the new user account search works, but eventually it will stop working again in a few days or weeks. Moving user account is a lot of hassle and is not a permanent solution.
5. Reinstalling Windows obviously make it work again, but same as point 4, the problem will eventually arise and I had to create new user/reinstall Windows.

Is there a permanent fix for this? Or a solution where I don’t have to constantly do everything from scratch again?