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External hard drives keep disconnecting


Your PC will automatically detect an external hard drive right after inserting it. If the PC can’t detect, it will notify you of an issue. But, sometimes the occurrence is different. Your PC detects the portable hard drive at first. But, it disconnects after a few whiles and it happens every single time you reconnect it to the computer. If you face it in recent time, we are sharing possible steps to fix the issue. Let’s explore more. 

Why does an external hard drive keep disconnecting?

Identifying a reason behind the occurrence is half of the action. When you exactly know the cause and fix it accordingly, this will be effective. Did you ever find the reasons behind the constant disconnecting issue? Check out the following.

A common reason for the constant disconnecting issue is perhaps your device’s USB ports are too old to connect, or it has been broken somehow inside.

If you have connected a corrupted drive with your Windows PC, chances are the operating system is denying the drive to protect your computer files to be corrupted.

Most latest computers are equipped with USB 3.0 in present. In some cases, the connectivity may hamper if the USB port of your computer or hard drive is too old.

How to fix external hard drive disconnecting

The issue is very disturbing especially for people who use portable drives every day. A sudden disconnection can result in data loss and you may need to take it to external hard drive recovery services. Fortunately, the issue can be fixed in most cases at home by applying some quick tricks.

Try different USB port

The USB port of your PC might have an issue. In that case, simply plug-in the drive to another USB port. It should work. When you try connecting different versions of USB ports like USB 3.0 to USB 2.0, the same thing can occur. Connecting different classes of USB may work, but the data transferring will be slower. 

Install the latest USB drivers

If your external hard drive is brought in the recent time, chances are it comes with USB 3.0, but your computer’s USB ports are not updated. This might be a possible reason for the constant disconnection. You can manually update those drivers. However, you can visit the website of your motherboard’s manufacturer and install the latest drivers for chipsets.

Disable “turn off mass storage device”

This is a default setting in Windows operating systems to save power while connecting to a mass external hard drive. Your computer will automatically turn off the power supply to the external drive. If the setting is allowed, disable it.

If you are a Windows user, press the Windows + X button and click the “Device Manager” from the popup menu.

Go to “Universal Serial Bus Controller” and select “USB Mass Storage Device”.

Click on the “Power Management” tab and remove the tick mark from the box right before “Allow the computer to turn off this device to save power”.

This change in setting may consume more power from portable devices but it should solve the issue.

Repair disk partition

Windows 7 and above versions have built-in error checking and repair options. If your hard drive has bad sectors, check them, and fix them. 

Go to This PC and right-click on the external drive [external hard drive]. Click “Properties” from the menu.

Click on the “Tools” tab and click the “Check” button in the error checking message.

Next, tick mark both “Automatically fix file system errors” and “Scan for and attempt recovery of bad sectors”, and finally click the “Start” button.

The mentioned quick techniques should fix the disconnecting issue immediately. If they don’t work, contact an expert.


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