Command output from Variable showing spaces - powershell

Question

I'm trying to extract the key for a user but I get unwanted spaces and newlines before the string and after it. My script is the following:
$File = gwmi Win32_UserProfile -co MADS000001 |
select localpath, sid |
Where-Object {$_.localpath -eq "C:\Users\Administrator"} |
select Sid |
ft -HideTableHeaders |
Out-String -Stream
Write-Host $file
How can I get rid of them?
The output looks like this:

Answer 1

I'm not sure of your goal.
If you want to find out the name of the local Administrator account (even if it's been renamed), you can write this:
Get-WmiObject Win32_UserAccount -Filter 'LocalAccount=TRUE AND SID LIKE "%-500"' |
Select-Object -ExpandProperty Name
If you want that user's profile path, you can combine them:
$adminSID = Get-WmiObject Win32_UserAccount -Filter 'LocalAccount=TRUE AND SID LIKE "%-500"' |
Select-Object -ExpandProperty SID
$profilePath = [WMI] "root\cimv2:Win32_UserProfile.SID='$adminSID'" |
Select-Object -ExpandProperty LocalPath
Note the use of Select-Object -ExpandProperty to select a specific property and output only that property.

Answer 2

I think you are over complicating it a bit.
If you just do
$profileInfo = Get-WmiObject Win32_UserProfile -ComputerName 'MADS000001' |
Where-Object {$_.localpath -like "*\Administrator"} |
Select-Object LocalPath, Sid, PSComputerName
You will get an object (if found of course, $null otherwise) with the three properties in the Select-Object command.
The $profileInfo.LocalPath you can use to delete the folder.
The $profileInfo.Sid string value you can use to remove the registry key for that user at
HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\<SID>
P.s. The second 'unwanted' whitespace you have outlined is simply a newline Write-Host always adds unless you use Write-Host $profileInfo.Sid -NoNewline

Answer 3

To get the SID for a user:
$userName = "Administrator"
$sid = Get-WmiObject Win32_UserAccount -Filter "LocalAccount=TRUE AND Name='$username'" |
Select-Object -ExpandProperty SID
Note that this will fail if the user is not named Administrator.
Also - note the use of Select-Object -ExpandProperty to select the value of a specific property of an object.