How to Fix ERROR_CONVERT_TO_LARGE 600 (0x258)

First, check if the error occured to incorrect file/folder permissions

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The ERROR_CONVERT_TO_LARGE with the error code 600 (0x258) and description Internal OFS status codes indicating how an allocation operation is handled. Either it is retried after the containing onode is moved or the extent stream is converted to a large stream, indicates Windows can not complete a file operation using the usual method and needs an extended format to handle the file properly.

How can I fix the ERROR_CONVERT_TO_LARGE?

Before moving with the advanced steps, follow these steps:

  • Reboot your computer
  • Run a full system malware scan using a reliable antivirus tool or Windows Defender.
  • Press Windows + X, click Event Viewer, navigate to Windows Logs> System, and look for warnings or errors related to this BSoD error.

1. Check the disk for errors

  1. Press the Windows key, type cmd in the search box, and select Run as administrator from the list of options to launch Command Prompt with administrative rights.CMD elevated ERROR_CONVERT_TO_LARGE
  2. Copy & paste the following command to run the chkdsk utility on the selected drive to repair file system issues if found, after replacing C: with the affected drive letter, and press Enter: chkdsk C: /fCHKDSK C command
  3. If the affected drive is already in use, you will get a prompt to schedule the scan after a restart; type Y and press Enter.
  4. Next, save and close all your work on your device and reboot it to start the scan.

2. Free up storage space

  1. Press Windows + R to open the Run box.Cleanmgr Run command ERROR_CONVERT_TO_LARGE
  2. Type cleanmgr and click OK to open the Disk Cleanup window.
  3. Select the drive you want to free up space from under Drives and click OK on the Disk Cleanup: Drive Selection window.Select the drive and click OK
  4. Click the Clean up system files option.Clean up system files ERROR_CONVERT_TO_LARGE
  5. You will see the Disk Cleanup: Drive Selection window again, select the same drive and click OK.
  6. Place a checkmark next to all the items listed under the Files to delete field and click OK.Click OK
  7. Click Delete Files on the following window to confirm the action.Delete Files

This will remove all the temporary files, files from the Recycle Bin, old Windows installation files, and other unnecessary files and retrieve space on your computer.

If your disk is still low on storage, go through each folder, and remove or move all the files unnecessary for the drive. However, if you are dealing with the system drive, be careful when deleting files, and don’t remove any folders from C:\Program Files and C:\Program Files (x86). Because, if you mistakenly remove or move a folder related to a system file or app, your PC may not function well.

3. Defragment the disk

  1. Press the Windows key, type cmd in the search box, and select Run as administrator from the list of options to launch Command Prompt with administrative rights.CMD elevated ERROR_CONVERT_TO_LARGE
  2. To defragment your disk, type the following command after replacing C with the affected drive letter and hit Enter: defrag C: /O
  3. The command will defragment files and consolidate free space, optimizing your disk performance and thus fixing the ERROR_CONVERT_TO_LARGE.

4. Run the SFC scan

  1. Press the Windows key, type cmd in the search box, and select Run as administrator from the list of options to launch Command Prompt with administrative rights.CMD elevated ERROR_CONVERT_TO_LARGE
  2. To repair or restore damaged system files, type the following command and press Enter: sfc /scannow SFCSCANNOW CMD ERROR_CONVERT_TO_LARGE
  3. Reboot your computer to let the changes take effect and check if ERROR_CONVERT_TO_LARGE still appears.

5. Check the file permissions

Check the file system

  1. Press Windows + E to open the File Explorer.
  2. Right-click the desired drive and select Properties.
  3. On the Properties window, go to the General tab and check the File System, it could be NTFS, FAT32, or exFAT.NTFS - ERROR_CONVERT_TO_LARGE
  4. If it is NTFS, skip the next step and check the file or folder permissions.

Convert the file system to NTFS

  1. Press the Windows key, type cmd in the search box, and select Run as administrator from the list of options to launch Command Prompt with administrative rights.CMD elevated ERROR_CONVERT_TO_LARGE
  2. Copy & paste the following command to convert the drive to NTFS after replacing C: with the desired drive letter: convert C: /FS:NTFS
  3. Follow the on-screen instructions to facilitate the process. Remember, don’t try to convert the system drive while it is in use.

If the error is caused by file or folder permissions issues, you must check the file permissions from the Properties window and adjust them if you find any inconsistencies.

6. Update/reinstall the device drivers

  1. Press Windows + R to open the Run box.Device Manager Run command  ERROR_CONVERT_TO_LARGE
  2. Type devmgmt.msc and click OK to open the Device Manager app.
  3. Expand each system component category one by one and look for a driver with a yellow triangle and an exclamation mark inside it.
  4. Once located, right-click the problematic drive and choose the Update driver option from the context menu.Driver update
  5. Select Search automatically for drivers.Search automatically ERROR_CONVERT_TO_LARGE
  6. You can repeat the process if there are more than one outdated driver.

Now, Windows will try to find and install the best driver version available for your device. If it it says the best version is already installed, you can visit the device manufacturer’s website to ensure you have the latest version or install one manually. Alternatively, you can opt for a third-party driver updater tool and run it weekly to ensure all device drivers stay up-to-date.

If ERROR_CONVERT_TO_LARGE reappears, you can follow these steps to reinstall the affected driver:

  1. Relaunch the Device Manager app, right-click the affected driver, and choose Uninstall device from the context menu.Uninstall device  ERROR_CONVERT_TO_LARGE
  2. Click Uninstall to confirm.
  3. Click Action from the top menu bar, then select the Scan for hardware changes options from the drop-down menu.Action scan for hardware changes

Reinstalling the system drivers can help you fix other blue screen errors such as ERROR_PAGEFILE_QUOTA_EXCEEDED and ERROR_ALERTED; check out this guide to learn more details.

7. Reformat the drive (last resort)

If none of the above methods work for you, you need to reformat the disk, but before that follow these steps:

  1. Once the system is up, select Repair your computer.Repair your computer  ERROR_CONVERT_TO_LARGE
  2. Click Troubleshoot.Choose an option - Troubleshoot ERROR_CONVERT_TO_LARGE
  3. Select Advanced options.Advanced options
  4. Choose Command Prompt from the Advanced options screen.
  5. Type the following commands one by one, replace # with the driver letter, and hit Enter after every command:Command Prompt Advanced Options .
    • diskpart
      list disk
      select disk #
      clean
  6. Make sure you are still in diskpart, then to create and format a new partition, copy & paste the following commands one by one after replacing C with the desired drive letter and press Enter after every command:
    • create partition primary
      format fs=ntfs quick
      assign letter=C

If the drive you are formatting is a system drive, you must reinstall Windows. To do so, restart your PC, make sure USB is the boot device, click Install Now, and follow the on-screen instructions.

In conclusion, to fix the ERROR_CONVERT_TO_LARGE, check the disk for errors using CHKDSK utility, free up disk space, run the System File Checker scan, verify the file permissions, update or reinstall the device drivers. You can also reformat the drive to fix the problem.

If you have any questions or suggestions about the BSoD error, feel free to mention them in the comments section below.

More about the topics: BSOD, BSoD error codes, BSoD errors, Windows 11

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