https://community.mindjet.com/mindjet/topics/ensure-2017-64-bit-version-installation
Mindmanager should automatically pick same bit rate version based on MS office Bit version while installing.
The combined installer detects the bit version of Microsoft Office on the system and installs the same bit version of MindManager.
If you want the 64-bit only link,I have created a case for you and a member of our Support Team will send you a link for the 64-bit installer.Thanks,
Mindjet Support
巨坑！浪費了一晚上的時間研究這玩意！官方明明說了是32位和64位一體的安裝包，我也是64位的Win10，偏偏怎么安裝都是32位的版本，死活不安裝64位的版本，真崩潰！
真沒想到這玩意竟然是根據系統中安裝的Office版本來確定安裝32位還是64位版本，奇葩玩意！真讓人無語！為了安裝這個64位的版本，還得先卸載Office，裝好這個之后再安裝Office，真夠折騰的！
送上2017版的下載地址：（中文版的小很多，不知道精簡了什么東西，還是建議用英文原版）
http://download.mindjet.com/MindManager_17.0.290.exe
http://dwnld.mindjet.com/stubs/Builds/MindManager2017/MindManager_17.0.290.exe
p.s. 看來該換64位的Office了。