I cannot install Packages because my Pip is outdated and my Pycharm does not have enough permissions to perform the upgrade

Question

I was trying to install the core but when I typed the following command pip install core I came across the following mistake

ERROR: Could not find a version that satisfies the requirement core (from versions: none)
ERROR: No matching distribution found for core

I tried to install the core by the project’s interpreter settings, but the same happened. Then I read that I needed to update my Pip and typed the following code pip install --upgrade pip and consequently appeared this error in my terminal:

Requirement already satisfied: pip in c:\users\rafael\pycharmprojects\iagamerproject\venv\lib\site-packages (21.1.2)
Collecting pip
  Downloading pip-21.2.4-py3-none-any.whl (1.6 MB)
     |████████████████████████████████| 1.6 MB 1.1 MB/s
Installing collected packages: pip
  Attempting uninstall: pip
    Found existing installation: pip 21.1.2
    Uninstalling pip-21.1.2:
      Successfully uninstalled pip-21.1.2
ERROR: Could not install packages due to an OSError: [WinError 5] Acesso negado: 'C:\\Users\\rafael\\AppData\\Local\\Temp\\pip-uninstall-3z9so64q\\pip.exe'
Check the permissions.