PowerShell磁盘清理脚本非交互式运行确认提示问题求助

编写了一个磁盘空间阈值触发的PowerShell清理脚本，脚本从C:\paths2.txt读取待清理路径。使用PDQ Deploy非交互模式运行时出现错误：

"Windows PowerShell is in NonInteractive mode. Read and Prompt functionality is not available.
At C:\Windows\AdminArsenal\PDQDeployRunner\service-4\exec\Error Handling Wrapper.ps1:58 char:2"

交互模式测试时，会弹出删除确认提示：

Confirm
The item at Microsoft.PowerShell.Core\FileSystem::C:\LocalSlaveData\O has children and the Recurse parameter was not specified. If you continue, all children will be removed with the item. Are you sure you want to continue?
[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is "Y"):

已添加-Force参数但仍出现提示，需修改脚本强制删除包含子文件夹的项，避免确认提示。

原脚本代码：

# Check if free space on local disk C is less than 20%
$disk = Get-WmiObject -Class Win32_LogicalDisk -Filter "DeviceID='C:'"
$freeSpaceGB = [math]::Round(($disk.FreeSpace / 1GB), 2)
$percentFree = [math]::Round(($disk.FreeSpace / $disk.Size) * 100, 2)

if ($percentFree -gt 20) {
    Write-Host "Free space on local disk C is greater than 20%. Script will exit."
    Exit
}

# Read the list of paths to delete files from the paths.txt file
$paths = Get-Content "C:\paths2.txt"

# Loop through each path and delete files that are more than 3 days old
$totalDataDeleted = 0
foreach ($path in $paths) {
    $files = Get-ChildItem $path -Recurse -Force | Where-Object { $_.LastWriteTime -lt (Get-Date).AddDays(-3) }
    $dataDeleted = ($files | Measure-Object -Property Length -Sum).Sum
    $totalDataDeleted += $dataDeleted
    $files | Remove-Item -Force
}

# Display the total amount of data deleted in GB
$totalDataDeletedGB = [math]::Round(($totalDataDeleted / 1GB), 2)
Write-Host "$totalDataDeletedGB GB of data has been deleted."

问题核心是：删除包含子项的文件夹时，仅用-Force不足以跳过确认，必须明确指定-Recurse参数告知PowerShell递归删除所有子内容。同时可以添加错误处理避免非预期中断。

具体修改点 #

• 在Remove-Item命令中补充-Recurse参数，彻底跳过子项删除确认
• 可选添加-ErrorAction SilentlyContinue忽略删除不存在项等非致命错误
• 建议用更现代的Get-CimInstance替代Get-WmiObject（PowerShell 5.1及以上支持），提升兼容性和性能

修改后的完整脚本 #

# 检查C盘剩余空间是否低于20%
$disk = Get-CimInstance -Class Win32_LogicalDisk -Filter "DeviceID='C:'"
$freeSpaceGB = [math]::Round(($disk.FreeSpace / 1GB), 2)
$percentFree = [math]::Round(($disk.FreeSpace / $disk.Size) * 100, 2)

if ($percentFree -gt 20) {
    Write-Host "C盘剩余空间大于20%，脚本退出。"
    Exit
}

# 从paths2.txt读取待清理路径列表
$paths = Get-Content "C:\paths2.txt"

# 遍历路径，删除3天前的文件和文件夹
$totalDataDeleted = 0
foreach ($path in $paths) {
    $items = Get-ChildItem $path -Recurse -Force | Where-Object { $_.LastWriteTime -lt (Get-Date).AddDays(-3) }
    $dataDeleted = ($items | Measure-Object -Property Length -Sum).Sum
    $totalDataDeleted += $dataDeleted
    $items | Remove-Item -Force -Recurse -ErrorAction SilentlyContinue
}

# 显示清理的总空间（GB）
$totalDataDeletedGB = [math]::Round(($totalDataDeleted / 1GB), 2)
Write-Host "已清理 $totalDataDeletedGB GB 数据。"

内容的提问来源于stack exchange，提问作者Alan