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@azunyuuuuuuu
Created February 17, 2026 05:31
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The script available in Windows 11 which can be used during the OOBE step to set the user folder name in c:\users\<usernam> to whatever you want
@echo off
setlocal enabledelayedexpansion
chcp 65001 >nul
set "input=%*"
if "%input%"=="" (
echo Usage: SetDefaultUserFolder.cmd ^<value^>
echo Example: SetDefaultUserFolder.cmd MyFolderName
exit /b 1
)
:: Now call PowerShell for detailed Unicode and reserved name validation
powershell -NoProfile -Command ^
"$name = '%input%'.Trim();" ^
"$invalid = [System.IO.Path]::GetInvalidFileNameChars() + @('@', '.', ';', '=', ',', '+');" ^
"if ([string]::IsNullOrWhiteSpace($name)) { Write-Host '[ERROR] Name is empty or whitespace.'; exit 1 }" ^
"elseif ($name.Length -gt 16) { Write-Host '[ERROR] Name exceeds 16 character limit.'; exit 2 }" ^
"elseif ($name.EndsWith(' ') -or $name.EndsWith('.')) { Write-Host '[ERROR] Name cannot end with space or dot.'; exit 1 }" ^
"elseif ('CON','PRN','AUX','NUL','COM1','COM2','COM3','COM4','COM5','COM6','COM7','COM8','COM9','LPT1','LPT2','LPT3','LPT4','LPT5','LPT6','LPT7','LPT8','LPT9' -contains $name.ToUpper()) { Write-Host \"[ERROR] '$name' is a reserved name.\"; exit 1 }" ^
"elseif ($invalidChar = $name.ToCharArray() | Where-Object { $invalid -contains $_ } | Select-Object -First 1) { Write-Host \"[ERROR] Invalid character found in name: '$invalidChar'\"; exit 1 }" ^
"else { Write-Host \"[OK] '$name' is a valid folder name.\" }"
if errorlevel 1 (
echo [ERROR] Folder name validation failed in PowerShell.
exit /b 4
)
:: Write to registry
reg add HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\UserOOBE /v SetSAMFolderName /t REG_SZ /d "%input%" /f >nul
if %errorlevel% EQU 0 (
echo [SUCCESS] Default user folder set to: %input%
) else (
echo [ERROR] Failed to set registry value. %errorlevel%
exit /b 5
)
exit /b 0
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