Windows 10: Data Corrupted by Defragmentation

Discus and support Data Corrupted by Defragmentation in Windows 10 Software and Apps to solve the problem; This is my first post in this forum. The Problem: Today, I decided to defragment and optimise my 2TB external Hard Disk using Auslogics Defragmenter.... Discussion in 'Windows 10 Software and Apps' started by Mycroft2046, Jun 16, 2016.

  1. Data Corrupted by Defragmentation


    This is my first post in this forum.
    The Problem:
    Today, I decided to defragment and optimise my 2TB external Hard Disk using Auslogics Defragmenter. Now, a little background here. The partition that I defragmented was a 1.8TB partition encrypted by VeraCrypt, a fork of TrueCrypt. After the defragmentation was completed, I found that several files have been corrupted. The files in which I could detect the corruption were all compressed files, compressed using Windows 10's default compression. I opened the files up in WinHex and I saw a curious thing: The end of all these corrupted files had a block of "DF DF DF" sequence. I am attaching a screenshot to illustrate the matter. Here is the Screenshot of the Problem.


    Data Corrupted by Defragmentation [​IMG]

    Please note that, though the picture shows it's an arc file, it was still compressed by Windows compression. The curious thing is that, even though the files had those DF chunks, a cursory HEX Search of the raw data hard drive did not yield any such sequence. Of course, I didn't have the time to scan the whole 2TB HDD for those sequences.

    I was scouring the internet for any sort of clue and I have found this: farmanager.com/enforum/viewtopic.php?t=318. Is the DF chunk some sort of compression voodoo?
    Could you tell me if there is any way to possibly solve the problem? I already ran a Data Recovery Software but to no avail. I am absolutely frantic, and would be grateful if you could kindly help me solve the problem.

    :)
     
    Mycroft2046, Jun 16, 2016
    #1

  2. Nokia X6 very slow

    You can simply connect your handset in mass storage mode and deal with it as if it is a flash drive:

    Open your defragmenter like Auslogics disk defrag (a speedy one is recommended), and you will find your mass memory on the list of drives available for defragmentation.

    After you're done with it, restart you handset to avoid any mass memory corrupt, and that's it :smileywink:

    Hope it helps.
     
    Hero1234---01, Jun 16, 2016
    #2
  3. Allan Mej Win User
    Defragmentation not working, and new update causing crashes

    Hi,

    It is possible that Disk Defragmenter service has been disabled or not properly running on your PC, causing defragmentation issues. To troubleshoot this, kindly try these following methods:

    Run System File Checker

    System File Checker is a utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files. To do so, follow these steps:

    • Right-click the Start Menu and select Command Prompt (Admin).
    • Run this command: SFC /scannow
    • This may take several minutes to finish. If Command Prompt shows Verification 100% complete, close the command prompt and check if your issue has been fixed.

    Check Disk Defragmenter service

    Disk Defragmenter service is required to perform disk defragmentation. If Disk Defragmenter service and other services that is required to perform disk defragmentation is disabled, you may encounter issues doing defragmentation. To troubleshoot this, follow
    these steps:

    • In the search box, search and open Services.
    • Find Disk Defragmenter service, right-click it, and select Properties.
    • Make sure that Disk Defragmenter service Startup type is set to Manual.
    • Go back to the Services window and make sure that the Startup type of these services is set to Automatic:
      • Remote Procedure Call (RPC)
      • DCOM Server Process Launcher
      • RPC Endpoint Mapper

    Regarding your issue with the Windows Update, kindly answer these following questions for us to assist:

    • What is the update that you are trying to install (KB16XXXX)?
    • What are the specifications of your PC?
    • Do you receive any error messages when encountering a system crash?

    We'll be looking forward for your response.

    Regards.
     
    Allan Mej, Jun 16, 2016
    #3
Thema:

Data Corrupted by Defragmentation

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