Uninstall registry key is not updated.

[vdijken]

I substituted the 8.51a version for the beta (9.087) version. But the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Totalcmd64\DisplayVersion still contains 8.51a. Programs who can help you to find new versions deduce wrongfully than I still have version 8.51a.

[ghisler(Author)]

Are you on a 64-bit system? This can happen when there are different versions of TC 32-bit and 64-bit installed, because that branch seems to be different in 32-bit and 64-bit regedit.