问题近来一打开电脑就看到内存占用了18个G明明什么都还没有打开。我利用codex查到更实在的原因开机后数据库服务起得很多。我查到当前比较吃内存的进程是sqlservr.exe大约1.54 GBmpdwsvc.exe两个进程合计大约1.06 GBmysqld.exe大约0.38 GBMsMpEng.exe大约0.52 GB更关键的是你的数据库相关服务是开机自动启动的而且不止一个SQL Server (MSSQLSERVER)SQL Server Analysis ServicesSQL Server PolyBase 引擎SQL Server PolyBase 数据移动MySQL80postgresql-x64-16也就是说你这台电脑一开机其实就在同时养着SQL Server MySQL PostgreSQL SQL 附加组件这在开发机上很常见但如果你平时不马上用数据库就会显得“开机内存一下子就上来了”。结论很直接不是单一程序异常爆内存。最大头是 Windows 缓存机制看起来高但很多是可回收的。真正常驻占用的重点是你开机自动启动了多套数据库服务和 SQL 的附加服务。如果你想把开机内存明显降下来最有效的是先处理这些服务而不是纠结微信、飞书这类小进程把暂时不用的MySQL80、postgresql-x64-16改成手动启动如果不用 SQL 的高级功能把SQL Server Analysis Services、SQL PolyBase也改成手动保留你真正每天要用的那一套数据库即可MySQL80临时关闭Stop-Service -Name MySQL80设置为开机不启动Set-Service -Name MySQL80 -StartupType Disabled以后重新启用Set-Service -Name MySQL80 -StartupType Manual Start-Service -Name MySQL80如果你希望恢复成开机自动启动Set-Service -Name MySQL80 -StartupType Automatic Start-Service -Name MySQL80PostgreSQL你这台机器上的服务名是postgresql-x64-16。临时关闭Stop-Service -Name postgresql-x64-16设置为开机不启动Set-Service -Name postgresql-x64-16 -StartupType Disabled以后重新启用Set-Service -Name postgresql-x64-16 -StartupType Manual Start-Service -Name postgresql-x64-16如果你希望恢复成开机自动启动Set-Service -Name postgresql-x64-16 -StartupType Automatic Start-Service -Name postgresql-x64-16SQL Server先“停止服务”Stop-Service -Name MSSQLFDLauncher -Force -ErrorAction SilentlyContinue Stop-Service -Name SQLWriter -Force -ErrorAction SilentlyContinue Stop-Service -Name SQLTELEMETRY -Force -ErrorAction SilentlyContinue Stop-Service -Name SQLBrowser -Force -ErrorAction SilentlyContinue Stop-Service -Name MSSQLLaunchpad -Force -ErrorAction SilentlyContinue Stop-Service -Name SQLPBDMS -Force -ErrorAction SilentlyContinue Stop-Service -Name SQLPBENGINE -Force -ErrorAction SilentlyContinue Stop-Service -Name MSSQLServerOLAPService -Force -ErrorAction SilentlyContinue Stop-Service -Name MSSQLSERVER -Force -ErrorAction SilentlyContinue再“禁止开机启动”Set-Service -Name MSSQLFDLauncher -StartupType Disabled Set-Service -Name SQLWriter -StartupType Disabled Set-Service -Name SQLTELEMETRY -StartupType Disabled Set-Service -Name SQLBrowser -StartupType Disabled Set-Service -Name MSSQLLaunchpad -StartupType Disabled Set-Service -Name SQLPBDMS -StartupType Disabled Set-Service -Name SQLPBENGINE -StartupType Disabled Set-Service -Name MSSQLServerOLAPService -StartupType Disabled Set-Service -Name MSSQLSERVER -StartupType Disabled下次要用时一键重新打开先“重新启用”Set-Service -Name MSSQLFDLauncher -StartupType Manual Set-Service -Name SQLWriter -StartupType Manual Set-Service -Name SQLTELEMETRY -StartupType Manual Set-Service -Name SQLBrowser -StartupType Manual Set-Service -Name MSSQLLaunchpad -StartupType Manual Set-Service -Name SQLPBDMS -StartupType Manual Set-Service -Name SQLPBENGINE -StartupType Manual Set-Service -Name MSSQLServerOLAPService -StartupType Manual Set-Service -Name MSSQLSERVER -StartupType Manual再“启动服务”Start-Service -Name MSSQLSERVER Start-Service -Name MSSQLServerOLAPService Start-Service -Name SQLPBENGINE Start-Service -Name SQLPBDMS Start-Service -Name MSSQLLaunchpad Start-Service -Name SQLBrowser Start-Service -Name SQLTELEMETRY Start-Service -Name SQLWriter Start-Service -Name MSSQLFDLauncherSet-Service -Name MSSQLSERVER -StartupType Manual最终总表下面这份你以后直接照着复制就行。1. 关闭 SQL ServerStop-Service -Name MSSQLFDLauncher -Force -ErrorAction SilentlyContinue Stop-Service -Name SQLWriter -Force -ErrorAction SilentlyContinue Stop-Service -Name SQLTELEMETRY -Force -ErrorAction SilentlyContinue Stop-Service -Name SQLBrowser -Force -ErrorAction SilentlyContinue Stop-Service -Name MSSQLLaunchpad -Force -ErrorAction SilentlyContinue Stop-Service -Name SQLPBDMS -Force -ErrorAction SilentlyContinue Stop-Service -Name SQLPBENGINE -Force -ErrorAction SilentlyContinue Stop-Service -Name MSSQLServerOLAPService -Force -ErrorAction SilentlyContinue Stop-Service -Name MSSQLSERVER -Force -ErrorAction SilentlyContinue Set-Service -Name MSSQLFDLauncher -StartupType Disabled Set-Service -Name SQLWriter -StartupType Disabled Set-Service -Name SQLTELEMETRY -StartupType Disabled Set-Service -Name SQLBrowser -StartupType Disabled Set-Service -Name MSSQLLaunchpad -StartupType Disabled Set-Service -Name SQLPBDMS -StartupType Disabled Set-Service -Name SQLPBENGINE -StartupType Disabled Set-Service -Name MSSQLServerOLAPService -StartupType Disabled Set-Service -Name MSSQLSERVER -StartupType Disabled2. 开启 SQL ServerSet-Service -Name MSSQLFDLauncher -StartupType Manual Set-Service -Name SQLWriter -StartupType Manual Set-Service -Name SQLTELEMETRY -StartupType Manual Set-Service -Name SQLBrowser -StartupType Manual Set-Service -Name MSSQLLaunchpad -StartupType Manual Set-Service -Name SQLPBDMS -StartupType Manual Set-Service -Name SQLPBENGINE -StartupType Manual Set-Service -Name MSSQLServerOLAPService -StartupType Manual Set-Service -Name MSSQLSERVER -StartupType Manual Start-Service -Name MSSQLSERVER Start-Service -Name MSSQLServerOLAPService Start-Service -Name SQLPBENGINE Start-Service -Name SQLPBDMS Start-Service -Name MSSQLLaunchpad Start-Service -Name SQLBrowser Start-Service -Name SQLTELEMETRY Start-Service -Name SQLWriter Start-Service -Name MSSQLFDLauncher3. 关闭 MySQL80Stop-Service -Name MySQL80 -Force -ErrorAction SilentlyContinue Set-Service -Name MySQL80 -StartupType Disabled4. 开启 MySQL80Set-Service -Name MySQL80 -StartupType Manual Start-Service -Name MySQL805. 关闭 PostgreSQLStop-Service -Name postgresql-x64-16 -Force -ErrorAction SilentlyContinue Set-Service -Name postgresql-x64-16 -StartupType Disabled6. 开启 PostgreSQLSet-Service -Name postgresql-x64-16 -StartupType Manual Start-Service -Name postgresql-x64-16补一句最实用的这些命令都建议在“管理员 PowerShell”里执行。如果你想我下一步可以再给你整理成“超精简版”每个只保留一小段方便你以后收藏。表格分界线关闭后减少了四五G内存