For some of my tests in Azure pipelines, I need winget to install them.

I tried different approaches. For example by using this script, with this result:

##[error]Test-IsAdmin : The term 'Test-IsAdmin' 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 D:a1sinstallwinget.ps1:2 char:11
+ if (-not (Test-IsAdmin)) {
+           ~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Test-IsAdmin:String) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : CommandNotFoundException
##[error]PowerShell exited with code '1'.

and with this code

Invoke-WebRequest -Uri https://aka.ms/getwinget -OutFile winget.appinstaller.exe; Start-Process winget.appinstaller.exe

Having this result

##[error]Start-Process : This command cannot be run due to the error: The specified executable is not a valid application for 
this OS platform..
At D:a1ssqlserverinstall.ps1:23 char:83
+ ... utFile winget.appinstaller.exe; Start-Process winget.appinstaller.exe
+                                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [Start-Process], InvalidOperationException
    + FullyQualifiedErrorId : InvalidOperationException,Microsoft.PowerShell.Commands.StartProcessCommand

Please help me out. I need something that works out the box and directly on azure pipelines (windows-2022)

I tried several other approaches. They all fail.

Please help me out and provide something for me that works out of the box, directly and without any errors.