fully removing older versions of QB services from a network server

Appreciate that you've already removed your older versions of QuickBooks Desktop, Mbernier. Let me share more information. 

If you have uninstalled the previous version of Desktop on the server, this will removed from the server. The process to remove older files may differ depending on your hosting. As you've already uninstalled your old version, we can follow these step for installer process.

Here's how:

1. After the installation, activate/register QuickBooks (if possible)
2. Add QBDataServiceUser## to the server's Administrators group from within Computer Management> System Tools> Local Users and Groups> Users
3. Open services.msc and:
   • Change the QuickBooksDB## startup type to Automatic
   • Stop the QBIDPService service
4. Delete the following file: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Intuit Data Protect
5. Give the All Users group Full Control on the following three folders:
   • C:\Program Files (x86)\Common Files\Intuit\QuickBooks
   • C:\Program Files (x86)\Intuit
   • C:\ProgramData\Intuit
6. Reboot and ensure that the QuickBooksDB## service and QBIDPService are still set to Automatic and running

I would suggest collaborating with an IT for more guidance. 

Moreover, I'd like to share these articles to help you update and learn more about clean uninstall process of QBDT:

• Host your company data in multi-user mode in QuickBooks Desktop
• Update your company files to a new version of QuickBooks Desktop

Keep me posted if you still have questions about deleting your old versions of Desktop. Have a great day, and take care.