I recommend more than one solution for this problem. For best results, perform the solutions in the order shown below.

1.  Download and run the QuickBooks Clean Install Tool.
This one will help you rename QuickBooks installation folders that might already be on your system.

2.  Reinstall QuickBooks using the direct […]

Resolution for 'after initiating issue: 'Cant switch to multiuser mode on qb file. When trying to run a scan with the DB manager, it crashes a couple seconds after initiating the scan. Reinstall did not fix' available: Yes.

The after initiating 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 after initiating issue yourself by looking for a resolution described in the article. If it is a complex after initiating issue or you are unable to solve the issue, you may contact us by clicking here or by using other after initiating support options.

For more information about resolving issues related to after initiating in Quickbooks/QBO or to get support for the issue 'Cant switch to multiuser mode on qb file. When trying to run a scan with the DB manager, it crashes a couple seconds after initiating the scan. Reinstall did not fix', click the link below: