How to fix “The specified buffer contains ill-formed data. [ERROR_BAD_COMPRESSION_BUFFER (0x25D)]” – Error Code 605


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Error Code 605

Error code Error Code 605 is a common Windows issue that typically arises from “The specified buffer contains ill-formed data. [ERROR_BAD_COMPRESSION_BUFFER (0x25D)]”.

Overview

In this article, we’ll focus on resolving the issue described as: “The specified buffer contains ill-formed data. [ERROR_BAD_COMPRESSION_BUFFER (0x25D)]”. This error, identified by the error code Error Code 605, can impede your system’s performance, and here’s how you can fix it.

Identifying the Problem

Error Code 605 occurs when a compression algorithm, typically used for file compression or encryption purposes, encounters invalid or corrupted data within the buffer. This error can arise in various scenarios such as data transfer, file decompression, and system processes that involve data compression. The primary symptom is the inability to complete operations involving compressed data.

Common Fixes

Method 1: System File Checker Scan

  1. Launch Command Prompt as an administrator.
  2. Type “sfc /scannow” and press Enter.
  3. Allow the scan to complete and repair any corrupted system files.

Method 2: DISM Tool

  1. Open Command Prompt as an administrator.
  2. Run the command “DISM /Online /Cleanup-Image /RestoreHealth”.
  3. Let the tool restore missing or damaged system files.

Method 3: Clean Boot

  1. Press Windows Key + R to open the Run dialog box.
  2. Type “msconfig” and press Enter.
  3. In the Services tab, enable “Hide all Microsoft services”.
  4. Disable all non-Microsoft services.
  5. Restart your computer in safe mode.

Advanced Troubleshooting

Method 4: Registry Editor

  1. Open Registry Editor (regedit).
  2. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem.
  3. In the right-pane, create a new DWORD value named “NtfsDisableCompression”.
  4. Set its value to “1” and restart your computer.

Method 5: Reinstall Compression Algorithm

  1. Uninstall the current compression algorithm you’re using.
  2. Download the latest version from the manufacturer’s website.
  3. Install the compression algorithm and restart your computer.

Conclusion

Error Code 605 can be resolved by following the steps outlined in this article. The common fixes should suffice in most cases; however, advanced troubleshooting methods may be necessary for persistent issues. To prevent future occurrences, ensure your system files remain intact by regularly performing system scans and keeping your software up to date.