How to fix slow file transfer speed in Windows?
Jun 30, 2025 pm 04:23 PMSlow file transfer can be solved by checking the hard disk status, closing the background program, adjusting the power settings and updating the driver. First check the health of the hard disk, use the error check tool and make sure the format is NTFS; secondly, defragment the HDD to confirm whether the peripheral interface version is USB 3.0 or above; then check and end the process of high IO occupancy through the task manager, and temporarily shut down the synchronization software; then enter the power option, and increase the hard disk shutdown waiting time or set to Never; finally update the storage controller driver and system patch to fix potential problems.
It's really crazy to get the file slow, especially when you're in a hurry to use it. The slow file transfer speed on Windows is not necessarily a network or hardware problem. It is often caused by system settings, drivers or background programs. After understanding the reasons, it is actually not difficult to adjust.

Below are some common and practical troubleshooting and optimization methods to help you increase file transfer speed.

Check hard drive health and format
The state of the hard disk itself has a great impact on the transmission speed. If you are using a mechanical hard drive (HDD), aging or bad channels may cause slowing down reading and writing; while a solid-state hard drive (SSD) will slow down if it is almost full.
- Check for errors : Right-click on the hard drive letter → Properties → Tools → Error Check.
- View format : NTFS is the most commonly used format for Windows, supporting large files and fast access; FAT32 or exFAT sometimes limits speed.
- Defragmentation (HDD only) : Although it is an old operation, it is still valid for mechanical hard disks. It can be sorted out through the Optimize Drive tool.
Especially for external devices, such as USB or mobile hard drives, the interface version (USB 2.0 vs USB 3.0) will also affect the maximum transmission speed limit.

Close the background program that occupies bandwidth
Windows's own updates, OneDrive, Dropbox, Steam and other synchronization tools, as well as browser download tasks, may secretly eat your disk or network resources in the background.
You can check this way:
- Open Task Manager (Ctrl Shift Esc)
- Check the disk usage under the Performance tab
- If a process continues to occupy high IO, you can find and end it on the "Process" page
You can also temporarily close OneDrive or other synchronization software to try the effect.
Adjust power management settings
Many people don't know that power plan settings will affect hard drive performance. In energy-saving mode, the system may slow down the hard disk speed or enter sleep state, thereby slowing down the transmission speed.
Solution:
- Open Control Panel → Power Options
- Edit the current power plan
- Expand Hard Drive in Advanced Settings
- Turn "Shut time to shut down hard drive" a little higher, or set to "Never"
This step is particularly useful for laptop users, especially when plug-in, there is no need to save this amount of power.
Update drivers and system patches
Outdated storage controller drivers or motherboard drivers may also cause abnormally slow transmission.
suggestion:
- Use Device Manager to check for exclamation marks for "IDE ATA/ATAPI Controller" and "Storage Controller"
- Go to the official motherboard website to download the latest driver
- Install Windows Update patches regularly to fix potential system bugs
Some branded computers or laptop manufacturers will come with their own optimization drivers, which will be more stable after updates.
Basically, these common reasons and coping methods. Sometimes it’s not that the equipment is not working, but that the settings are not in place. By changing a few configurations, you can often significantly improve transmission efficiency.
The above is the detailed content of How to fix slow file transfer speed in Windows?. For more information, please follow other related articles on the PHP Chinese website!

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