QB Issue Resolution:
About an hour after I clicked “cancel”, the system did inform me that there was an installation error had occured and I was able to restart and complete the process.
Resolution for Issue 'Installation Frozen' available: Yes (Solved).
Source: Intuit Community forum.
Installation Frozen: this 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 issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for Installation Error
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!
Error Recovery for Installation Error [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.
Additional Support Options: