Hi, @3H.

Let me help share additional steps for you to try. When all else fails, the Super Clean Install is intended to be the last resort. 

You can refer to this article for the steps: Reinstall using a Super Clean install.

If you're unsure about performing the troubleshooting steps, I'd recommend consulting an IT professional since this process can result in damage if not done correctly.

Keep me posted how it goes. I'll be here to help if you have other questions about QuickBooks.