Windows 沒有直接的“效率模式”開關(guān)，但可通過多種內(nèi)置功能實現(xiàn)類似效果。 1. 使用任務管理器：按Ctrl Shift Esc 打開，右鍵目標應用選擇“轉(zhuǎn)到詳細信息”，再右鍵該進程選擇“設(shè)置優(yōu)先級”為“低於正常”或“低”以降低CPU佔用，並在“啟動”選項卡中禁用不必要的開機自啟程序。 2. 啟用電池saver 或電源效率模式：點擊任務欄電池圖標開啟電池saver，或通過“設(shè)置> 系統(tǒng)> 電源與電池”設(shè)置自動啟用，可限制後臺活動、減緩應用同步並降低視覺效果。 3. 管理後臺應用權(quán)限：進入“設(shè)置> 應用> 已安裝應用> 高級選項”，將“後臺應用權(quán)限”設(shè)為“從不”，或在“設(shè)置> 系統(tǒng)> 後臺應用”中全局關(guān)閉後臺運行。 4. 使用Windows Sandbox 或輕量替代應用：對資源佔用高的程序，可在Pro/Enterprise 版中使用Windows Sandbox 隔離運行，或改用輕量工具如Notepad 替代重型IDE，優(yōu)先使用網(wǎng)頁版應用如Office Online。 5. 使用PowerCfg 工具進行高級優(yōu)化：以管理員身份運行命令提示符並執(zhí)行powercfg /energy，生成能耗報告，識別高耗能應用或驅(qū)動並進行禁用或替換。通過組合使用這些方法，可有效實現(xiàn)類似效率模式的資源管控，最終達到提升性能與延長續(xù)航的目的。

Windows doesn't have a direct “Efficiency Mode” toggle for apps like macOS does, but it offers several built-in tools and settings that let you achieve similar results—reducing CPU, memory, and power usage for specific apps to improve system performance and battery life. Here's how you can effectively enable efficiency-like behavior for apps in Windows.

1. Use Task Manager to Limit Background App Activity

The easiest way to control how much system resources an app uses is through Task Manager , which allows you to set process priorities and restrict background activity.

Steps:

• Press Ctrl Shift Esc to open Task Manager .
• Go to the Processes tab.
• Right-click on the app or background process you want to optimize.
• Choose Go to details (if not already in Details view).
• Right-click the process again and go to Set priority .
  • Select Below Normal or Low to reduce its CPU priority, making it less likely to slow down other tasks.

?? Note: Be cautious with system processes. Only adjust priorities for apps you recognize.

Additionally:

• In Task Manager, under the Startup tab, disable unnecessary apps from launching at startup to reduce background load.

2. Enable Battery Saver or Power Efficiency Mode

Windows includes power-saving modes that throttle app performance to save energy—especially useful on laptops.

To enable Battery Saver:

• Click the battery icon in the taskbar.
• Select Battery Saver to turn it on.
• Or go to Settings > System > Power & battery > Battery Saver and set it to turn on automatically when battery drops below a certain level.

When Battery Saver is on:

• Background apps are restricted.
• Mail and app syncing slows down.
• Visual effects are reduced.

This indirectly puts many apps into an efficiency mode by limiting their background activity.

3. Manage Background App Permissions

You can prevent apps from running in the background entirely, which is a form of efficiency mode.

Steps:

• Go to Settings > Apps > Installed apps (or Apps & features on older versions).
• Click on an app > Advanced options .
• Under Background app permissions , select Never .

Alternatively:

• Go to Settings > System > Background apps .
• Toggle off Let apps run in the background globally, or manage it app by app.

This stops apps from consuming CPU and network resources when not in use.

4. Use Windows Sandbox or Lean App Alternatives

For heavy or poorly optimized apps, consider running them in Windows Sandbox (available in Pro/Enterprise editions), which isolates them and limits system impact.

Alternatively:

• Replace resource-heavy apps with lighter versions (eg, use Notepad instead of full IDEs for quick edits).
• Use web versions of apps when possible (eg, Office Online instead of full Office suite).

5. Monitor and Optimize with PowerCfg (Advanced)

Windows includes a command-line tool called powercfg that can analyze energy usage and suggest improvements.

Example: Open Command Prompt as admin and run:

 powercfg /energy

This generates an energy report (saved as an HTML file) highlighting apps or drivers using excessive power.

You can then use this info to disable or replace inefficient apps.

While Windows doesn't label it “Efficiency Mode,” combining priority settings , background app controls , and power-saving modes gives you fine-grained control over app efficiency. The key is identifying which apps consume the most resources (via Task Manager) and applying the right restrictions.

Basically, it's about smart resource management—no single switch, but plenty of effective tools.

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