Hello there, @VISTA-BOB.
If you need to print the check and hand it over to your vendor, you really need to set up a vendor in QuickBooks Desktop (QBDT). Once done writing a check, you can make the vendor inactive if you wish to delete the one time payee (vendor) that you've set up. I'm here to help guide you how.
To set up a vendor:
To create a check:
If you wish to inactivate the vendor (one time payee):
For further details about creating, modifying, and creating checks in QBDT, you can check this article: Create, modify, and print checks.
Please feel free to drop a comment below if you have any other questions about writing checks. I'll always be here to help you!