如图
先去官网下载 https://www.wiris.com/en/mathtype/
安装完成后
新建一个txt文件,输入如下代码
Windows Registry Editor Version 5.00
[-HKEY_CURRENT_USER\Software\JavaSoft\Prefs\com\wiris\editor\license\]
[HKEY_CURRENT_USER\Software\JavaSoft\Prefs\com\wiris\editor\license\]
"/Cv/E/C81+j/Rw/U/E6ws/Znt/Os/K/Q=="="11/M/P/Ir/Y/B/S/P/Pr/Q/L/Ny/T9s4/Iw=="
"/Mz/Bhef/D/Q/Hs30/U6/F/Pdl/R/Xsg=="="/S/Zd8c/Ai/Z/A83028s6/Kn/Gf/M/Q=="
"vi/L/M7/K/Hb/C/O/A/K/X9uuis/O1/J/A=="="/S/Zd8c/Ai/Z/A80\\/O/S/C/Vgp\\0/P/Q=="
"wm/U/C/Y/T/Nz5/Tw="="/Wna/F/W3q/I/Yp/V\\lj/Dedai56/Ur/Wpf/P/Kpl/Soh/A/Z/Qe\\6hit3ym\\6m5sp/B/B/Q=="
"x/W/Yrj/M/Db/Bds="="104z/W8rbqpw5\\/Qz0/C/Q/Opu/Dj/B5b/Dwsy77"
将.txt后缀改为.reg后缀，双击执行。
完工！