free antivirus will no longer work

Hi all,
I’ve used Avast for a long time. I’ve never encountered this problem.
I tried to up date and it gives me this error

avastui.exe - Entry Point Not Found

The procedure entry point ?PreCreateWithMsgLoop@SysTrayIcon@systray@common_ui@asw@@QAE_NPBUS_InitDescriptor@234@HAA_N@Z could not be located in the dynamic link library C:\Program Files\AVAST Software\Avast\avastui.exe.

OK

any ideas what happened?

Repair Avast:

  1. Control Panel → Add/Remove programs → Avast
  2. Click on ‘Repair’.
  3. Follow instructions.
  4. Reboot.

OK, I tried that. NO “repair” if I check other programs “repair” is an option, just not with Avast.

Clean Install of Avast:
https://goo.gl/4Ptzkf
If you need additional help with the Clean Install, watch this:
https://youtu.be/p-h3myRD51A