VERIFIED SOLUTION i

Uninstalling MapInfo Pro (32-bit and 64-bit) manually

Sometimes uninstalling Professional via Programs and Features fails for various reasons.

Professional can be manually uninstalled, however,  with the following procedure:
(Admin rights will be needed to edit the Registry and it is recommended that the Registry be backed
up before proceeding or engage the IT department to do this uninstall)

1) Launch Windows Explorer and then
delete the Professional install folder (i.e. C:\Program Files (x86)\MapInfo\Professional for 32-bit versions
and C:\Program Files\MapInfo\Professional for 64-bit versions of MapInfo Pro.
delete C:\Users\login name\AppData\Local\MapInfo\MapInfo\Professional\version
delete C:\Users\login name\AppData\Roaming\MapInfo\MapInfo\Professional\version

2) use Regedit to open the registry editor and delete the following keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\MapInfo\MapInfo\Professional\version
(for 32-bit versions of MapInfo Pro)
HKEY_LOCAL_MACHINE\SOFTWARE\MapInfo\MapInfo\Professional\version for 64-bit versions of MapInfo Pro
(for 64-bit versions of MapInfo Pro)
and
HKEY_CURRENT_USER\Software\MapInfo\MapInfo\Professional\version
 - this registry key applies to both 32-bit and 64-bit versions of Pro.

To remove Professional from the programs and features, in the registry go to

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

and search through the folders under uninstall for the folder containing a reference
to the MapInfo Professional version being uninstalled and delete that folder.
Environment Details
Product affected: MapInfo Professional™
 
UPDATED:  July 25, 2018