clean uninstall/reinstall of ArcGIS Pro

[HalaAbdelmaksoud]

Hi all, 

How can I do a clean uninstallation /reinstallation of ArcGIS?

Thanks in advance.

[DanPatterson]

How To: Troubleshoot installation and uninstallation issues (esri.com) is a good start

[Robert_LeClair]

Once you uninstall ArcGIS Pro, I've found it useful to rename the ESRI folder in the C:\users\<user profile>\appdata\local and C:\users\<user profile>\appdata\roaming to ESRI_OLD before I do a clean install of ArcGIS Pro.  Seems to help the stranger issues seen...