Does your external hard drive disconnect by itself when you use it on your Windows PC? It is more common than you imagine, and although it may seem like a serious fault, in most cases has a simple solutionThis issue affects both new and older drives and can be caused by a variety of factors, from power configuration errors to driver failures, faulty cables, or operating system conflicts.
In this article, we will explain why this error occurs, how to identify the specific cause, and most importantly, how to fix it step by step.Plus, if you've lost files due to these disconnections, we'll also provide you with a reliable solution to recover them without any hassle.
Main causes of external hard drive disconnection
There are several reasons why a device storage USB may be disconnecting only in Windows. Identifying the exact cause is essential to apply the most appropriate solution..
1. Physical problems with the USB cable or port
A damaged cable or faulty USB port can cause intermittent disconnections. Although it may seem obvious, many times The problem is a simple physical connection failure.
2. System power saving settings
Windows, especially in portable, is set by default to save battery. Among those settings is the 'Selective USB Suspend', which can cut off power to the port if it detects inactivity.
3. Outdated or conflicting drivers
If the system has drivers Incompatible or outdated USB controllers can cause communication errors between the operating system and the hard drive, resulting in random disconnections.
4. Conflicting software
Some applications, especially antivirus or power management utilities installed by laptop manufacturers, can interfere with the USB connection and cause these interruptions.
5. Insufficient power supply
Some external hard drives require more power than a single USB port on your computer can supply. This is common with larger or older models that don't have an external power supply.
How to fix automatic disconnection of external drive
Now that we know the possible causes, let's see what steps you can take to permanently fix this problem.
1. Try another USB port and change the cable
Connect the drive to another port, if possible a different one (for example, from USB 3.0 to USB 2.0). Sometimes a simple port change fixes the error.. Also test with another cable to rule out physical problems.
2. Disable USB selective suspend
This energy saving feature may be disconnecting the diskTo disable it in Windows 10 or 11, follow these steps:
- Open the Control panel and access Security system.
- Click on Energy options and about your current plan, click on Change plan settings.
- Press on Change advanced power settings.
- In the new window, locate USB configuration and disable the option USB Selective Suspend.
3. Prevent Windows from turning off USB devices
Windows may turn off USB devices to save energy. To avoid it:
- Accesses Device administrator (right click on the start button and select the option).
- Expand the section Universal Serial Bus Controllers.
- Double click on each USB Root Hub and go to the tab Power management.
- Uncheck the option Allow the computer to turn off this device to save power.
4. Disable Legacy Boot Mode (Legacy USB)
some systems BIOS ancients can interfere with drives connected via USB 3.0 ports. In order to solve it:
- Enter the computer's BIOS during the Boot (usually by pressing F2, TIME o ESC).
- Locate the option Legacy USB support and disable it.
- Save the changes and reboot the system.
5. Reinstall or update USB drivers
From Device Manager:
- Right click on the driver USB 3.0 and select uninstall.
- Restart your computer, and the system will automatically reinstall the driver.
- You can also go to Windows Update and check for updates to get the latest drivers.
What if I've lost files due to disconnections?
When a drive is unexpectedly disconnected, data loss may occur. or the drive appears as inaccessible or RAW formatted. You can easily recover them.
There are specialized tools such as EaseUS Data Recovery Wizard y MiniTool Power Data Recovery that serve this purpose. Both offer a simple interface and are capable of recovering files from disks that have connection errors.
How to recover files with EaseUS Data Recovery
- Scan the driveDownload and install the program. Then connect the disk and select the drive you want to analyze.
- Check the files found: The software will show you located documents, images, videos, and other files.
- Recover them in another secure location: Never save recovered files on the same problem disk.
Another option: MiniTool Power Data Recovery
This tool also offers recovery from external drives. Use the module This PC if the drive appears as RAW or the module removable disk drive if it is not detected directly. Allows you to filter files by type, name, date or preview them before recovering them. It is very useful to avoid overwriting data.
Other technical aspects to take into account
Some users have experienced this failure after updating hardware or make changes to Windows boot settings, especially if the external drive contains a copy of the operating system or old partitions.
If you use discs with protections such as W.D. SecurityRemember that if your computer goes to sleep, the disk is automatically locked. To use it again, you'll need to disconnect it, reconnect it, and unlock it.
It is also advisable to keep your operating system updated and check the health status of the disk. with tools like CrystalDiskInfo, HD Tune or the manufacturer's own diagnostic utilities.
Finally, check that your computer's BIOS version is up to date. An outdated BIOS can cause incompatibility with large-capacity external drives.
Unexpected disconnections can be resolved with patience and the right tools, applying the appropriate solutions for each cause. Having good data recovery software ensures that no files are lost in the process.
Passionate writer about the world of bytes and technology in general. I love sharing my knowledge through writing, and that's what I'll do on this blog, show you all the most interesting things about gadgets, software, hardware, tech trends, and more. My goal is to help you navigate the digital world in a simple and entertaining way.