Windows 10 搜索框失效的解决方法

系统： Windows 10 1903
起因： 最近更新了 Windows 10 的最新版本，使用时发现左下角的搜索功能点击后呈灰色状，输入内容也没有匹配搜索项。经上网查阅资料，并在微软官网找到以下方法。

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Step 1

新建一个 txt 文本文档。

Step 2

复制以下内容到新建的文本文档中并保存。（以下代码为微软官方提供）

# Copyright © 2019, Microsoft Corporation. All rights reserved.

function T-R
{
     
    [CmdletBinding()]
    Param(
        [String] $n
    )

    $o = Get-Item -LiteralPath $n -ErrorAction SilentlyContinue
    return ($o -ne $null)
}

function R-R
{
     
    [CmdletBinding()]
    Param(
        [String] $l
    )

    $m = T-R $l
    if ($m) {
     
        Remove-Item -Path $l -Recurse -ErrorAction SilentlyContinue
    }
}

function S-D {
     
    R-R "HKLM:\SOFTWARE\Microsoft\Cortana\Testability"
    R-R "HKLM:\SOFTWARE\Microsoft\Search\Testability"
}

function K-P {
     
    [CmdletBinding()]
    Param(
        [String] $g
    )

    $h = Get-Process $g -ErrorAction SilentlyContinue

    $i = $(get-date).AddSeconds(2)
    $k = $(get-date)

    while ((($i - $k) -gt 0) -and $h) {
     
        $k = $(get-date)

        $h = Get-Process $g -ErrorAction SilentlyContinue
        if ($h) {
     
            $h.CloseMainWindow() | Out-Null
            Stop-Process -Id $h.Id -Force
        }

        $h = Get-Process $g -ErrorAction SilentlyContinue
    }
}

function D-FF {
     
    [CmdletBinding()]
    Param(
        [string[]] $e
    )

    foreach ($f in $e) {
     
        if (Test-Path -Path $f) {
     
            Remove-Item -Recurse -Force $f -ErrorAction SilentlyContinue
        }
    }
}

function D-W {
     

    $d = @("$Env:localappdata\Packages\Microsoft.Cortana_8wekyb3d8bbwe\AC\AppCache",
        "$Env:localappdata\Packages\Microsoft.Cortana_8wekyb3d8bbwe\AC\INetCache",
        "$Env:localappdata\Packages\Microsoft.Cortana_8wekyb3d8bbwe\AC\INetCookies",
        "$Env:localappdata\Packages\Microsoft.Cortana_8wekyb3d8bbwe\AC\INetHistory",
        "$Env:localappdata\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\AC\AppCache",
        "$Env:localappdata\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\AC\INetCache",
        "$Env:localappdata\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\AC\INetCookies",
        "$Env:localappdata\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\AC\INetHistory",
        "$Env:localappdata\Packages\Microsoft.Search_8wekyb3d8bbwe\AC\AppCache",
        "$Env:localappdata\Packages\Microsoft.Search_8wekyb3d8bbwe\AC\INetCache",
        "$Env:localappdata\Packages\Microsoft.Search_8wekyb3d8bbwe\AC\INetCookies",
        "$Env:localappdata\Packages\Microsoft.Search_8wekyb3d8bbwe\AC\INetHistory",
        "$Env:localappdata\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\AppCache",
        "$Env:localappdata\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\INetCache",
        "$Env:localappdata\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\INetCookies",
        "$Env:localappdata\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\INetHistory")

    D-FF $d
}

function R-L {
     
    [CmdletBinding()]
    Param(
        [String] $c
    )
 
    K-P $c 2>&1 | out-null
    D-W # 2>&1 | out-null
    K-P $c 2>&1 | out-null

    Start-Sleep -s 5
}

function D-E {
     
    Write-Host "Press any key to continue..."
    $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyUp") > $null
}

Write-Output "Verifying that the script is running elevated"
if (-Not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] 'Administrator')) {
     
 if ([int](Get-CimInstance -Class Win32_OperatingSystem | Select-Object -ExpandProperty BuildNumber) -ge 6000) {
     
  $Cx = "-File `"" + $MyInvocation.MyCommand.Path + "`" " + $MyInvocation.UnboundArguments
  Start-Process -FilePath PowerShell.exe -Verb Runas -ArgumentList "-noexit",$Cx
  Exit
 }
}

$a = "searchui"
$b = "$Env:localappdata\Packages\Microsoft.Windows.Search_cw5n1h2txyewy"
if (Test-Path -Path $b) {
     
    $a = "searchapp"
} 


Write-Output "Resetting Windows Search Box"
S-D 2>&1 | out-null
R-L $a

Write-Output "Done..."
D-E

Step 3

重命名文件名称为：ResetWindowsSearchBox.ps1

注意：文件后缀必须为 ps1，该文件为 PowerShell 的扩展名，默认以 PowerShell 打开。

Step 4

右键以管理员身份运行。

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注意：如果发现没有解决，请尝试重启电脑或者重启资源管理器。

完 ~