yarn install visual studio code error, what could be the problem?

Question

npm

I write in terminal VS code yarn install
gives error
yarn : Cannot load file C:\Users\38066\AppData\Roaming\npm\yarn.ps1 because scripting is disabled on this system. For
more information, see about_Execution_Policies at https://go.microsoft.com/fwlink/?LinkID=135170.
line:1 char:1
+ yarn install
+ ~~~~
+ CategoryInfo : Security Error: (:) [], PSSecurityException
+ FullyQualifiedErrorId : UnauthorizedAccess