Sometimes, users can experience their Windows 11 PCs working slowly or laggy, making them very sluggish. However, features like ReadyBoost can help to improve system speed.

Apply these quick steps to enable ReadyBoost in Windows 11

  • Enabling ReadyBoost in your Windows 11 device will increase its speed and overall performance.

  • The ReadyBoost feature cannot work on your PC if the SuperFetch / SysMain service is not running.

  • Users need to take note of the USB device requirements for ReadyBoost to select the appropriate and supported USB device to use.

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Moreover, there are other effective methods to improve PC performance on Windows 11 and get your system to work smoothly.

What is ReadyBoost?

ReadyBoost is a Windows feature introduced in Microsoft Windows Vista, then included in later versions of Windows. Its purpose is to fasten up the Windows system by using a USB drive to store cache data.

Furthermore, it improves the system performance and speed of Windows without installing additional RAM on the PC. Hence, the external flash memory storage serves as an extension of your system memory.

Why is Readyboost disabled?

The ReadyBoost feature on Windows 11 may not be enabled for some reason, prompting it not to work when selected under properties. However, ReadyBoost may be disabled if your PC has enough system memory. It means there is no need to initiate an external memory for its process.

Also, you can’t use ReadyBoost on an SSD, so without a USB drive or external memory, ReadyBoost will be disabled. Other reasons why ReadyBoost can be disabled are:

  • Incompatible USB devices – Users can experience the ReadyBoost option being disabled if the USB driver or external hard drive inserted is not supported. It won’t be usable as an extension space for the boost process.
  • SuperFetch or SysMain service not running – The ReadyBoost feature depends on some services to function on your computer. Hence, the ReadyBoost function may be disabled on Windows 11 if they are not installed.

Other reasons may be responsible for ReadyBoost being disabled on Windows 11. Nonetheless, we’ll take you through how to enable it.

How do I enable and use ReadyBoost on Windows 11?

Before proceeding with the steps for enabling ReadyBoost, go through the following:

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  • Ensure your USB flash drive or memory card has a free storage capacity of at least 500 MB and a high data transfer rate.
  • The USB port key must be at least USB 2.0.
  • Ensure the USB device can do 3.5 MB/s for 4 KB random reads across the system and 2.5 MB/s for 512 KB random writes across the device.

Proceed with the steps below to enable ReadyBoost on your Windows 11 PC.

1. Run the SuperFetch or SysMain service on your PC

  • Press Windows + R key to open the Run dialog box, type services.msc, and press Enter to open the Service Manager.
  • Find the SuperFetch or SysMain from the list of services, then check if it is running.
  • If the SuperFetch / SysMain service is not running, right-click it, then click on Properties.
  • Change the Startup type to Automatic, click on the Start button, then click OK and Apply to save the changes.

The ReadyBoost feature can’t work without your computer’s SuperFetch / SysMain service. So, the first step to enabling ReadyBoost is to ensure SuperFetch / SysMain is running.

If you encounter Service Host SysMain High Disk Usage in Windows 10/11, read about fixing it.

2. Enable ReadyBoost on Windows 11

  • Plug your USB flash drive or memory card into the appropriate port and check if it appears on your desktop.
  • Press Windows + E key to open File Explorer.
  • Click on This PC from the left pane, right-click the USB flash drive and click Properties from the drop-down.
  • Go to the ReadyBoost tab, then wait for Windows to check if your drive is compatible with ReadyBoost.
  • Click the radio button for Use this device option, go to the slider for Space to reserve for system speed, and move it to the right end.
  • Click the OK button, and click Apply to imitate the ReadyBoost feature.

ReadyBoost should run on your device without running into any errors. If Windows 11 is not recognizing the USB device, check how to fix it.

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  • Download & Install Intel Bluetooth Driver for Windows 11
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Conclusively, you can read our article on how to make Windows 11 faster by disabling processes you don’t need on your PC. Likewise, you can also check the best optimization software for your PC.

Do not hesitate to leave your suggestions or questions in the comments section.

If the advices above haven’t solved your issue, your PC may experience deeper Windows problems. We recommend downloading this PC Repair tool (rated Great on TrustPilot.com) to easily address them. After installation, simply click the Start Scan button and then press on Repair All.

Still having issues? Fix them with this tool:

  • Windows 11 guides

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