How to Install Spyder 3 on Windows

1) Install newest python version here:
https://www.python.org/downloads/.
2) Install PyQt5: using cmd typing this command*

pip3 install PyQt5

3) Install Spyder: also using cmd with command

pip install spyder

pip install --upgrade spyder

4) Run: type spyder3 in cmd, the program will run.

Goodluck.
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(*)
If you got this error "Fatal error in launcher: Unable to create process using '"'  "

-> Try entering command

python -m pip install xxx

In which xxx is the name of the packet you want to install