ImportError: DLL load failed while importing cv2: The specified module could not be found. in jupyter tried almost all but didnt work

Code

import numpy as np
import cv2
import os
import random
import matplotlib.pyplot as plt
import pickle

Error:

ImportError                               Traceback (most recent call last)
Input In [13], in <cell line: 2>()
      1 import numpy as np
----> 2 import cv2
      3 import os
      4 import random

ImportError: DLL load failed while importing cv2: The specified module could not be found.

tried:

pip install opencv-contrib-python

pip install opencv_python‑3.2.0‑cp36‑cp36m‑win_amd64.whl (64-bit version)

I'm using anaconda nothing works struggling for a week