Which Windows Services You Can Disable to Improve Performance (And How)
Windows runs a lot of background services you may not need. Turning off some can free up CPU, RAM, and reduce disk usage. But do this carefully—you don’t want to break features you use.
Below I go over common services people disable, how to assess which ones are safe, and step-by-step instructions.
Why Disable Services
- Many Windows services run all the time, even if you don’t need them.
- They use CPU cycles, memory, and sometimes disk I/O.
- Disabling or setting them to “manual” can reduce resource use, speed up boot, and improve responsiveness.
- But if you disable essential services, you may lose functionality (printing, networking, updates, etc.).
Use a “disable only what you understand” approach.
Common Services People Disable (and Risks)
Here are services often disabled, and what to watch out for:
| Service | What It Does | Why Disable | Risks / What You Lose |
|---|---|---|---|
| Print Spooler | Manages printing tasks | If you never print | You won’t be able to print or see printers |
| Windows Search | Indexes files for faster search | If you rarely use search or have SSD where search is fast | Search in File Explorer will slow or stop |
| Fax | Fax service | If you never use fax | If you ever need to send or receive faxes via Windows, it won’t work |
| Remote Registry | Allows remote registry editing | Security risk, rarely used | If you need to remotely manage registry, that won’t work |
| Windows Update / Delivery Optimization | Manages updates and peer sharing | Only if you prefer manual updates (not recommended) | Windows won’t auto-update; could miss patches |
| Bluetooth Support Service | Manages Bluetooth devices | If you never use Bluetooth | Any Bluetooth device (keyboard, mouse, headphones) will fail |
| Superfetch / SysMain | Preloads frequently used apps into memory | On SSDs, it’s less useful and can wear drive | Slower startup for apps you do use frequently |
| Windows Error Reporting | Collects crash reports | Reduces background reporting | Windows won’t send crash logs; harder to diagnose issues |
| Connected Devices Platform Service | Manages connected devices | If you don’t use certain IoT or device features | Some device connectivity features may break |
How to Safely Disable or Change a Service
Here’s how you can disable or set services to manual mode:
- Press Win + R, type
services.msc, hit Enter. - In the Services window, scroll to find the service you want.
- Double-click the service.
- Under Startup type, choose one of:
- Disabled — it won’t run at all.
- Manual — Windows or an app will start it if needed.
- Automatic (Delayed Start) — starts after boot delay.
- Click Stop if it is running right now.
- Click Apply, then OK.
- Reboot and test your system. Make sure nothing critical is broken.
Recommended Services to Start With (Optional)
Here’s a shorter list of lower-risk services to try disabling first:
- Print Spooler (if you never print)
- Fax
- Remote Registry
- Windows Error Reporting
- Connected Devices Platform
- Bluetooth Support (if you don’t use Bluetooth)
What to Do If You Break Something
- Keep a record (screenshot or list) of original service settings before you change them.
- If something stops working, go back to
services.mscand change the service back to Automatic or Manual. - Use System Restore or a backup if the system becomes unstable.
- Test after each change instead of doing many at once.
