Trying to install Version 1.89

[arthur49]

After downloading and installing 1.89, the program still shows version 1.87

[Woodstock]

Most likely cause is that some part of MakeMKV was still running when you attempted the install, so the old version was not removed. Alternatively, you might not have been installing with administrator privileges, so the old files could not be removed.

Reboot the machine. THEN try the install.