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Does Windows’ USB Removal Policy Affect Drive Speed? How to Change It

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Windows’ default Quick removal policy disables write caching for external storage, which can reduce performance in some situations. Switching a drive to Better performance allows write caching and may help with large transfers—but it is not a guaranteed speed fix, and you must safely eject the drive before unplugging it.

Why a USB drive may seem slow in Windows

Starting with Windows 10 version 1809, Quick removal became the default policy for external storage. Microsoft says the policy keeps a device ready to remove at any time by preventing Windows from caching disk write operations; Microsoft also notes that this can degrade system performance. That does not establish that every USB drive is measurably slower, or that changing the policy will improve every device or task.

Write caching lets Windows temporarily hold write operations before sending them to a drive. Under Better performance, Windows can use that cache, which may improve write performance in suitable cases. The result depends on the drive and workload; the cited guidance does not provide a universal speed figure or benchmark.

Quick removal vs. Better performance

Policy Write caching and performance Unplugging Typically suited to
Quick removal Windows does not cache disk write operations under this policy. Performance may be lower for some tasks. Designed to keep the device ready for removal. Safely ejecting is still recommended to protect data. Small-file use on ordinary flash drives, or when you frequently connect and disconnect a drive.
Better performance Allows write caching and may improve performance, depending on the drive and workload. Safely eject the drive and wait for confirmation before disconnecting it, so cached operations can finish. Consider for a high-speed external drive used for frequent large-file transfers.

The usage suggestions reflect Microsoft’s policy description and MSI’s manufacturer guidance; they are not guarantees of a particular speed improvement.

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How to change the removal policy

The following Microsoft instructions apply to Windows 10 and Windows 11. The policy is set for an individual external storage device, not as a single switch that changes all USB drives.

  1. Connect the external drive and identify it in File Explorer.
  2. Right-click Start and open Disk Management.
  3. In the lower section of Disk Management, right-click the device label and choose Properties.
  4. Open the Policies tab and select Better performance. Microsoft recommends also selecting Enable write caching on the device when you choose this policy.
  5. Select OK to apply the change.

If you do not see a Policies tab in that Properties window, open Hardware, select the removable drive under All disk drives, choose Properties, and look for Policies there. Microsoft notes that tab layouts can differ in recent Windows versions.

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How to safely eject after enabling write caching

After choosing Better performance, do not unplug the drive as soon as a file copy appears to finish. Use the Safely Remove Hardware and Eject Media icon in the system tray, select Eject for the drive, and wait for the Safe To Remove Hardware notification before disconnecting it. Microsoft says this process ensures cached operations finish and protects the integrity of data on the device.

When the change may not help

  • Small files or frequent swapping: MSI identifies ordinary flash-drive use for small files and frequent connect/disconnect cycles as cases where Quick removal may be a reasonable fit.
  • A drive or workload that is not cache-limited: Better performance only allows caching; it does not guarantee faster transfers. The available guidance does not quantify an expected gain.
  • Convenience matters more than possible write gains: Quick removal prioritizes readiness to remove. Better performance adds the requirement to eject and wait before unplugging.

Do not confuse this policy with the separate Windows setting called Turn off Windows write-cache buffer flushing. It is not needed to enable the external-storage policy described here, and Windows Central warns that changing it can add data-loss risk.

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Windows 10 support status

The removal-policy setting is documented for Windows 10 and Windows 11, but Windows 10 support ended on October 14, 2025, according to Microsoft. That date does not change how the setting is described; it does mean Windows 10 is no longer a supported operating system.

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