Thanks for coming here, @Kennyboss.

TurboTax Business is out of QuickBooks Community scope. However, let me share some insights about the error you encountered while importing data to TurboTax.

Most of the time, the error message in TurboTax, "QuickBooks Desktop not installed" and "No QuickBooks Desktop file has been found", arises if you're in a network or cloud data file. 

To avoid this, let's ensure to look into these things:

• The QuickBooks software (downloadable or CD) is installed on your computer, along with TurboTax.
• QuickBooks data files should be saved to your local drive, not on the network or cloud.

On top of this, we recommend contacting TurboTax Community support for additional guidance and help you sort these things up. You can click this link to reach them: https://ttlc.intuit.com/community/home/misc/03/en-us

Whenever you're ready to file or submit your return in TurboTax, you can browse some topics from this page: File taxes.

For additional migration and tax concerns, never hesitate to come back here. I'll be here always. Have a good one.