How to Fix Error 0x800701B1 on Windows PC? Here are 8 solutions (2023)

0x800701B1 is an error code you may receive when transferring files from your PC to an external hard drive. Some users also got the error when installing Windows 10 using a USB drive. How to fix error 0x800701B1.MiniTool-Softwarecompiles some solutions in this post.

It is common to transfer files from your PC to anotherexternal hard disk or USB stickin our daily life. Unfortunately, some users have received an error code 0x800701B1 while transferring files, which usually comes with the following error message:

An unexpected error is preventing you from copying the file. If you keep getting this error, you can use the error code to seek help with this issue. Error 0x800701B1: A non-existent device was specified.

There could be many reasons for this error. If you are having the same problem, don't worry. Here are some possible solutions that you can try one by one to fix the problem.

Solution 1: Connect your external device to a different USB port

Error 0x800701B1 may appear due to poor performance or poor transmission speed. USB 3.0 typically has a higher data transfer rate and offers more efficient power management.

If your computer has multiple USB ports, try connecting your external hard drive or USB flash drive to your computer through a different USB port. If your external drive comes with USB 3.0 interface, you'd better connect it to USB 3.0 port instead of USB 2.0 port.

Recommended article:USB 2.0 vs 3.0: What's the Difference and Which is Better?.

Solution 2: Double check disks in Disk Management

Another easy way to fix error 0x800701B1 is to double-scan hard disks in Disk Management, a utility built into Windows PCs that allows users to view and manage installed hard disks. You just have to:

Step 1: Right-click on theTo startpress and selectDisk managementno menu pop-up.

step 2: In Disk Management, click thePlotoption and selectRescan the diskno menu pop-up.

You have to wait for the process to complete. Then try copying and pasting files to your USB drive again. If error 0x800701B1 persists then you should move on to the next solution.

Solution 3: Update or reinstall the hard drive driver

An outdated or corrupted hard drive driver can also lead to error code 0x800701B1. To solve the problem in this case, you can try updating or reinstalling the driver software. Here is the detailed tutorial.

Step 1: Right-click on theTo startpress and selectdevice Manager.

step 2: In Device Manager, double-click thedrivescategory to expand it. Then right-click on the USB drive and select itupdate drivers.

stage 3: Select from the pop-up windowAutomatic search for updated driver software🇧🇷 Then patiently follow when the latest driver is downloaded and installed.

Step 4: Once the driver update is installed, restart your computer.

step 5: If error 0x800701B1 occurs again, go todevice Manager, right-click the USB drive and selectuninstall device🇧🇷 After uninstalling the driver, restart your computer and the driver will be reinstalled automatically.

Solution 4: Rollback hard drive driver

You may also encounter error code 0x800701B1 due to disk driver compatibility issues, especially when using a USB flash drive. If you already have the latest driver software installed, you may need to try rolling back the driver to an older version.

Step 1: Opendevice Manager.

step 2: Double clickdrives(or USB Serial Bus Controller) to extend it. Then right-click on the USB drive and select itCharacteristics.

stage 3: Switch to in pop-up windowconductorguide and click onrollback driverKnopf.

Solution 5: Change USB drive security options

Another reason for error 0x800701B1 "A non-existent device was specified" is that you don't have permission to access your USB drive due to security permission issues. To fix the error, you need to change your USB drive's security settings by following the steps below.

Step 1: pressWin+EOpenfile manager.

step 2: Cliqueit's pcin the left panel and right click on your USB drive. Select from the popup windowCharacteristics.

stage 3: Go to in pop-up windowsafetyguide and click onProgressiveKnopf.

Step 4: In the USB Drive Advanced Security Settings window, clickchangeButton. Then click onProgressiveSelect a button in the User or Group window.

step 5: In the window that opens, click the buttonfind nowButton. Then, in the Search Results section, double-click the user's name. When you return to the Select User or Group window, clickOKto confirm the changes.

step 6: When you return to the USB Drive Advanced Security Settings window, enable theReplace all child object permission entries with inheritable permission entries from this object"Possibility.

step 7: CliqueUseeOKto keep the change.

Now you can check if error 0x800701B1 is fixed.

Solution 6: Check for file system errors

if there is anyFile system errorYou may also get error 0x800701B1 "A non-existent device was specified" on your USB drive. To fix error code 0x800701B1 in this case, there are three methods to choose from. Let's look at them one by one.

Method 1: Run CHKDSK from Command Prompt

Windows provides a built-in tool, CHKDSK, for checking and repairing file system errors, and you can access it viacommand prompt🇧🇷 It requires some computer knowledge and be careful when using the command prompt as you can damage your computer if you accidentally type wrong commands.

You can follow the steps below to run CHKDSK from the command prompt.

Step 1: pressWin+Rchamá-losto runWindow.

step 2: Typecmdin the field and pressctrl+layer+Prohibitedto run the command prompt as an administrator.

stage 3: At the command prompt, type the commandchkdsk*: /fand pressureProhibitedto check and correct all logical errors in the unit. Please note that you need to replace them.*with the letter of your USB drive while typing commands.

Then just wait for the process to finish.

Method 2: Run CHKDSK in File Explorer

If you are not familiar with Command Prompt, you can run CHKDSK from File Explorer. Here are the detailed steps.

Step 1: pressWin+EOpenfile manager.

step 2: Select in File Explorerit's pcand right-click on the problematic drive that encountered error code 0x800701B1. Then selectCharacteristicsno menu pop-up.

stage 3: Go to in pop-up windowToolAba.

Step 4: TightenTestbutton below theerror checkingSection to start checking for file system errors on the drive.

If Windows detects errors, you will be asked to restart your computer to correct them. Then just wait for the process to finish.

Method 3: Check the File System with MiniTool Partition Wizard

Alternatively, you can also check and fix file system errors on your USB drive with a reliable and professional third-party tool, MiniTool Partition Wizard. With this tool, you can easily fix error code 0x800701B1 in few clicks. You just have to:

Step 1: Download MiniTool Partition Wizard by clicking the following button. Then install and launch it to get its main interface.

free download

step 2: Select the partition on your USB drive and clickCheck the file systemLeft action panel function.

stage 3: In the pop-up window, select "Check and fix detected errors” and click the buttonTo startKnopf.

Then all you have to do is wait for the error checking to complete. After doing this, check if the 0x800701B1 problem goes away.

Solution 7: Remove unnecessary peripherals

You may also encounter insufficient power supply issues. Better try removing other unnecessary peripherals connected to your computer and see if that helps.

Solution 8: Try a different external drive

If all the above solutions didn't help you to resolve error code 0x800701B1, then try using another external hard drive to transfer files from your computer. If the problem does not appear, then there might be physical errors on your external hard drive. And you must stop using the problematic unit.

To deal with the problematic drive, here are some tips for you:

• If you can access the drive, try moving your data yourself.
• If there is important data on the problematic drive but you can access it, trydata recoverywith a professional tool or ask professionals for help.

How to fix error code 0x800701B1? Here are top 8 solutions and you can try them one by one to fix the problem.click to tweet

final result

If you are stuck by Error 0x800701B1 while transferring files from your PC to a USB device, then try the above solutions to fix the issue. You can share your ideas with us in the following comment zone. If you have any problems with MiniTool Partition Wizard, please contact us via email[Email protected].