Just a suggestion:

Do you have qb2011 on a machine still running? If so I would first back it up and try upgrading in stages say to possibly 2015 to 2017 if possible. Intuit should be able to help you with that – let them know you plan on purchasing 2018.

Resolution for '2017 if possible issue: 'I have QB 2011 and will purchase a windows 10 machine. Plan to purchase QB pro 2018. HOw can I retrieve the last 7 years of QB when i change to windows 10?' available: Yes.

The 2017 if possible issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the 2017 if possible issue yourself by looking for a resolution described in the article. If it is a complex 2017 if possible issue or you are unable to solve the issue, you may contact us by clicking here or by using other 2017 if possible support options.

For more information about resolving issues related to 2017 if possible in Quickbooks/QBO or to get support for the issue 'I have QB 2011 and will purchase a windows 10 machine. Plan to purchase QB pro 2018. HOw can I retrieve the last 7 years of QB when i change to windows 10?', click the link below: