Hello @Jeffrey7,
You can download the installation software of QuickBooks Enterprise 2018 from the Downloads and Updates page. Let me show you how.
- Go to the Downloads and Updates page.
- Select United States.
- Click Standard Setup.
- Under Product, select QuickBooks Desktop Enterprise.
- On the Version field, select 2018.
- Select Search.
- Click Download.
On the same page, you can also find the resources about installing and activating QuickBooks is also provided for your reference.
However, you'll still need to open QuickBooks from your old computer to get a copy of your company data. You can do this by following the steps outlined by my colleague above.
Additionally, I've also included this reference for a compilation of articles you can use while working with us: Help Articles for QuickBooks Enterprise.
If there's anything else that I can help you with, please let me know by leaving any comments below. I'll be here to lend a hand.