Python subprocess error win 10

[Havalda Andrew]

Dear Python team,

I have encountered a problem with Python 3.6 version, when I open IDLE it
sais: "Subprocess startup error". I attached a photo of it. And after I
click "Ok" it closes. I can not even use IDEs either. (I can not run a
single print statement...)

I am using Windows 10  on a Dell laptop.( It is quite embarrassing that I
have recently bought this laptop for my python engineering work.)

I tried to reinstall Python and to use the 64-bit and the 32-bit version
too. Neither of them worked. I also googled my problem but none of those
solutions helped me.

I would be grateful if you would help me solve this embarrassing problem.

I look forward to hearing from you as soon as possible.

Yours faithfully,
Andrew Havalda