Lesson 6 Yarn setup error

[EngAbdalrhman]

I can't install yarn package , because the following problem

yarn : File C:\Users\<userName>\AppData\Roaming\npm\yarn.ps1 cannot be loaded because running scripts is disabled on this system.

when i used

corepack enable

the following error returned

Internal Error: EPERM: operation not permitted, open 'C:\Program Files\nodejs\pnpm'

then i used

npm i -g corepack

to add the package and it should be added "added 1 package in 7s"
but when i run yarn by

yarn  --version

the first error returned.

[EngAbdalrhman]

found this for solving the problem

powershell -ExecutionPolicy Bypass -File "C:\Users\<userName>\AppData\Roaming\npm\yarn.ps1"