According to Microsoft, Windows 10 no longer optimizes external storage devices for “better performance” as of the October 2018 Update. Instead, it optimizes them for “quick removal.” Here’s what that means—and how to change it if you like.
We don’t think every Windows user has to change this option. Despite how tempting “better performance” sounds, the default “quick removal” policy is fine for most people.
Quick Removal vs. Better Performance
Windows has different “policies” you can select for external storage devices connected via USB or Thunderbolt, whether it’s a USB thumb drive or external hard drive. Each individual storage device has its own specific policy setting so that you can select different policies for different devices.
By default, Windows 10 now uses the “quick removal” policy. Whenever you write to the drive, Windows writes the data to the drive as quickly as possible. This ensures you can remove the USB drive without using the “Safely Remove Hardware” option—in theory. A program may be writing to your USB drive in the background anyway, so we recommend against it. This does dramatically reduce the risk of data corruption if you’re in the habit of safely removing storage devices before unplugging them.
However, this can slow down your applications. For example, when you’re saving a file to the external drive, the program you’re using may stop and wait for the save process to finish before you can continue working.
The “Better performance” option eliminates this slowdown. With this option, Windows will cache write operations to the drive and let applications proceed as if they had already written the data. Windows then performs the write operation in the background. That can make applications snappier.
On the other hand, this can result in data loss in some situations. Users think their files are saved and remove the drive—but the data wasn’t actually saved, and now the files on the drive may be corrupted. That’s why you should use the “Safely Remove Hardware” option before unplugging a drive in Windows. It tells Windows to write all that cached data to disk, ensuring all your data is safe before removing the drive.
It’s unclear how much “better performance” you’ll experience in practice. This will depend on the speed of your external storage device, how the application you’re using handles writing data, and how much data you’re writing at any given time. Microsoft clearly thinks the default “quick removal” is good enough for most people and that avoiding data loss is a priority. After all, many people don’t bother with “safely removing” devices before unplugging them. That makes “quick removal” a superior solution for many people, as it will reduce the risk of data loss when not safely removing a drive.