when i type dotnet it doesnt work

### URL

https://dotnet.microsoft.com/en-us/learn/dotnet/hello-world-tutorial/intro

### Operating system

windows

### More information about your system

_No response_

### Description

dotnet : The term 'dotnet' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path
was included, verify that the path is correct and try again.
At line:1 char:1
+ dotnet
+ ~~~~~~
+ CategoryInfo : ObjectNotFound: (dotnet:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException

### dotnet --info

_No response_

Start with the linked Hello World tutorial and reproduce the reported command-not-found error on Windows. Check whether the tutorial explains installing .NET and making dotnet available, then use the reported dotnet --info step to verify the result. Done means the tutorial's prerequisite or troubleshooting guidance addresses this failure.

Written by the indexing model from the issue text.