Math Solver feature in ver. 118

I just now found "Math Solver" after all these years in my version 117 on an old computer. Then it updated to ver. 118 and the "Click and Drag feature for the PC is gone I believe. All you had to do is drag over the math problem and supposedly, Math Solver would solve it? Math Solver is still on ver 118 but the drag part is gone. I was thinking about rolling back to ver 117, but how? Where is a safe .msi download?