What to Do if Encounter Error 0x800701B1 on Windows 10

Some Windows 10 users have complained about an error notice that “Windows cannot install required files. Make sure all files required for installation are available, and restart the installation. Error code: 0x800701B1” when they were in the process of installing Windows 10.

Poor hard disk contact, a lack of the driver’s permission, an incompatible driver, and so forth may cause this error (0x800701B1). This article will tell you what to do if you encounter error 0x800701B1 on Windows 10.

1. Plug out & Wipe the Hard Disk

If there is a problem with the SSD slot, the contact between the gold finger and the SSD slot may become loose easily. The error code 0x800701B1 may result from inadequate contact with the hard disk. So, you can remove the hard drive, wipe it with an eraser, and put it back on. If you are unsure of how to plug it, ask a professional computer maintenance engineer for help to prevent any potential damage.

2. Change the Other USB Port

There are different types of ports in your system. If you use a new external hard disk that only applies to USB 3.0 but is plugged into a USB 2.0, that may cause error code 0x800701B1. For that reason, try to eject the USB driver and use another USB port to insert it, then see if the error has been fixed. If you've indeed inserted the disk into USB 3.0, try to insert the disk into another USB 3.0 port to check.

3. Rescan Disks in Disk Management

You can use the rescan tool that comes with it in disk management to fix this Windows 10 error: 0x800701b1.

Step 1: Press the Windows key + X and choose Disk Management.

Step 2: Select the Action tab → Click Rescan Disks.

4. Gain Security Settings Permissions

If the drive's security permissions do not allow you to access it, the USB drive may show an error message: “A device which does not exist was specified.” So, you can take ownership of the security settings.

Step 1: Press “Win + E” to open File Explorer → Click This PC → Right-click your USB drive → Select Properties.

Step 2: Select the Security tab → Click Advanced.

Step 3: In the pop-up window, click Change → Then click Advanced.

Step 4: In the" Select User or Group" window → Click Find Now to find and double-click your user’s name, then click OK.

Step 5: In the “Advanced Security Settings for USB Drive” window, tick “Replace all child object permission entries with inheritable permission entries from object”, then click Apply and OK.

After that, finish your process to check if the error 0x800701b1 has been repaired.

5. Update or Reinstall the Driver

The error 0x800701b1 is sometimes caused by outdated drivers and incompatibility. You can update or reinstall the driver to fix the issue.

Step 1: Press “Win + R” and type “devmgmt.msc” then click the OK button.

Step 2: Find Disk drives → Right-click your USB drive → Update the driver or Uninstall the device.

Once the updating or reinstalling process is complete, reboot your computer to check if the error is fixed.

6. Run the CHKDSK Command

A logical file system error will also cause the error. You can perform a CHKDSK command to run an overall scan.

Step 1: Type cmd in the search bar → Click Run as administrator.

Step 2: Type chkdsk g: /f (g: refers to the USB drive letter), then hit the Enter button. Be patient and wait for the scanning process to finish clearing errors.