C# Dev Kit Extention installation gives Error acquiring .Net

Downloading the .NET Runtime.
Using configured .NET path: C:\Program Files\dotnet\dotnet.exe
Downloading the .NET Runtime.
Downloading .NET version(s) 7.0.9 ... Error!
Failed to download .NET 7.0.9:
Command failed: powershell.exe -NoProfile -ExecutionPolicy unrestricted -Command "& { [Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12 ; & 'c:\Users\UserName\.vscode\extensions\ms-dotnettools.vscode-dotnet-runtime-1.6.0\dist\install scripts\dotnet-install.ps1' -InstallDir 'c:\Users\UserName\AppData\Roaming\Code\User\globalStorage\ms-dotnettools.vscode-dotnet-runtime\.dotnet\7.0.9' -Version 7.0.9 -Runtime dotnet }
'powershell.exe' is not recognized as an internal command
or external, an executable program or a batch file.

Error!
.NET Acquisition Failed: Installation failed: Error: Command failed: powershell.exe -NoProfile -ExecutionPolicy unrestricted -Command "& { [Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12 ; & 'c:\Users\UserName\.vscode\extensions\ms-dotnettools.vscode-dotnet-runtime-1.6.0\dist\install scripts\dotnet-install.ps1' -InstallDir 'c:\Users\Anass\AppData\Roaming\Code\User\globalStorage\ms-dotnettools.vscode-dotnet-runtime\.dotnet\7.0.9' -Version 7.0.9 -Runtime dotnet }
'powershell.exe' is not recognized as an internal command
or external, an executable program or a batch file.

The file:
c:\Users\UserName\AppData\Roaming\Code\logs\20230804T100933\window1\exthost\ms-dotnettools.vscode-dotnet-runtime\DotNetAcquisition-ms-dotnettools.vscode-dotnet-runtime-1691140477052.txt. Note that this file may contain personal data.
is empty