删除JSON文件的特定内容

我正在对我们环境中的服务器进行分析，其中通过PowerShell检索数据，并 for each 服务器创建一个JSON文件.事实证明，有些JSON的格式不正确，我需要遍历所有文件，找到格式不正确的文件，并删除不正确的部分.以下是格式错误的文件的示例:

{
"value":  [
              {
                  "Server":  "SERVERNAME",
                  "Name":  "SHARE",
                  "ScopeName":  "*",
                  "Path":  "",
                  "Description":  "",
                  "ShareState":  1,
                  "AvailabilityType":  0,
                  "ShareRights":  [

                                  ],
                  "ShareSddl":  "",
                  "ShareRoot":  [

                                ],
                  "TotalFileCount":  35,
                  "TotalDirectoryCount":  47,
                  "TotalFolderSizeBytes":  "",
                  "TotalFolderSizeInMB":  "",
                  "TotalFolderSizeInGB":  "",
                  "TreeSizeDirFailed":  null,
                  "TreeSizeFileFailed":  null,
                  "TreeErrorHistory":  null
              }
          ],
"Count":  10 (This number varies)
}

我需要做的是删除以下部分:

{
"value":  [

和

,
"Count":  10 (This number varies)
}

我试过用-replace和String.Replace()，但没有成功...上面的部分仍然存在.下面是我所做的一个例子，但仅用于测试，它只侧重于删除结尾部分.我怎样才能着手修复这个问题，这样更换才能正常工作？谢谢!

$Files = Get-ChildItem -path ""

$StartMatch = @"
{
    "value":  
"@

$EndMatch = @"
,
    !!!ROW!!!
}
"@

ForEach ($File in $Files){
    Write-Host "■ Checking file: $File"
    $Contents = (Get-Content -Path "$File")
    if ($Contents.StartsWith($StartMatch)){
        Write-Host "Match" -ForegroundColor Green #test print
        Write-Host "-Checking EOF... " -NoNewline
        if (($Contents | Select-Object -Last 3) -like "*Count*"){
            Write-Host "Match" -ForegroundColor Green
            $EOFMatch = $EndMatch -replace "!!!ROW!!!", $Contents[$Contents.length - 2]
            Write-Host $EOFMatch -ForegroundColor Yellow
            $Contents = $Contents -replace $EOFMatch, ""
            $Contents #test print

            Break #testing only
        }
    }else{
        Write-Host "No match"#test print
    }
}