Windows系统清理与优化脚本

# Windows系统清理与优化脚本 # 使用方法: 以管理员身份运行 PowerShell，执行 .\cleanup.ps1 Write-Host "========================================" -ForegroundColor Cyan Write-Host " Windows系统清理与优化工具" -ForegroundColor Cyan Write-Host "========================================" -ForegroundColor Cyan Write-Host "" $freedSpace = 0 # 1. 清理临时文件 Write-Host "【1/6】清理临时文件..." -ForegroundColor Yellow $tempPaths = @( $env:TEMP, "C:\Windows\Temp", "C:\Windows\Prefetch" ) foreach ($path in $tempPaths) { if (Test-Path $path) { $before = (Get-ChildItem $path -Recurse -ErrorAction SilentlyContinue | Measure-Object Length -Sum).Sum Remove-Item "$path\*" -Recurse -Force -ErrorAction SilentlyContinue $after = (Get-ChildItem $path -Recurse -ErrorAction SilentlyContinue | Measure-Object Length -Sum).Sum $freedSpace += ($before - $after) Write-Host " ✅ 已清理: $path" } } # 2. 清空回收站 Write-Host "" Write-Host "【2/6】清空回收站..." -ForegroundColor Yellow Clear-RecycleBin -Force -ErrorAction SilentlyContinue Write-Host " ✅ 回收站已清空" # 3. 清理系统更新缓存 Write-Host "" Write-Host "【3/6】清理Windows更新缓存..." -ForegroundColor Yellow Stop-Service wuauserv -Force -ErrorAction SilentlyContinue $updatePath = "C:\Windows\SoftwareDistribution\Download" if (Test-Path $updatePath) { Remove-Item "$updatePath\*" -Recurse -Force -ErrorAction SilentlyContinue Write-Host " ✅ 更新缓存已清理" } Start-Service wuauserv -ErrorAction SilentlyContinue # 4. 清理浏览器缓存 Write-Host "" Write-Host "【4/6】清理浏览器缓存..." -ForegroundColor Yellow $browserPaths = @( "$env:LOCALAPPDATA\Google\Chrome\User Data\Default\Cache", "$env:LOCALAPPDATA\Microsoft\Edge\User Data\Default\Cache", "$env:APPDATA\Mozilla\Firefox\Profiles" ) foreach ($path in $browserPaths) { if (Test-Path $path) { Remove-Item "$path\*" -Recurse -Force -ErrorAction SilentlyContinue Write-Host " ✅ 已清理: $(Split-Path $path -Leaf)" } } # 5. 清理DNS缓存 Write-Host "" Write-Host "【5/6】刷新DNS缓存..." -ForegroundColor Yellow ipconfig /flushdns | Out-Null Write-Host " ✅ DNS缓存已刷新" # 6. 系统优化设置 Write-Host "" Write-Host "【6/6】应用系统优化设置..." -ForegroundColor Yellow # 禁用启动项(示例，可根据需要调整) Write-Host " ℹ️ 建议手动检查启动项: taskmgr -> 启动" Write-Host "" Write-Host "========================================" -ForegroundColor Green Write-Host " 清理完成！" -ForegroundColor Green Write-Host " 释放空间约: $([math]::Round($freedSpace/1MB, 2)) MB" -ForegroundColor Green Write-Host "========================================" -ForegroundColor Green Write-Host "" Write-Host "建议重启电脑使优化生效" -ForegroundColor Cyan