When you are going to re-install CRM, you might get the folowing error during the installation:
Fatal error during installation: Installation failed for Microsoft Application Error Reporting.
Solutions is to uninstall the Microsoft Application Error Reporting, see below.
So please remind this step and of course also delete the following items before re-installing:
- SQL databases (MSCRM_CONFIG, ..._MSCRM databases)
- CRM Organization Unit in Active Directory if made (5 groups)