For businesses determined to use QuickBooks Desktop 2018, the only safe way to access the software is by purchasing a legitimate license key from Intuit or an authorized reseller. Even then, users must accept the loss of add-on services. However, there are often better alternatives for those seeking cost-effective accounting solutions:

– You can re-download the installer from your Intuit account at https://accounts.intuit.com (look under "My Account" → "Products & Downloads").