How to fix Windows installation error 0x8007025D?

Question

Issue: How to fix Windows installation error 0x8007025D?

Hello. I tried to clean install Windows but it failed with 0x8007025D error code. What should I do to fix this?

Solved Answer

Many customers are frustrated by Windows installation error 0x8007025D, especially when trying to do a clean install of the operating system. Nevertheless, this error number is not limited to clean installs; it can also appear in other situations and impede Windows from operating without a hitch. When installing Windows via USB or during regular Windows updates, users frequently run across this error and get a message saying the system is unable to install the necessary files.

The occurrence of the setup error 0x8007025D seems to be confined to specific situations, pointing towards potential triggering factors. Among the factors that have been found to contribute to this issue include broken ISO image files, malfunctioning memory, faulty hardware, corrupt drivers, and corrupted update cache. This error's appearance draws attention to the possible harm it might do to users by interfering with the Windows operating system's regular installation and update procedures.

Effective troubleshooting of error 0x8007025D requires an understanding of the underlying issues. When faced with this issue, users may need to investigate remedies for defective hardware, driver conflicts, memory difficulties, damaged update caches, and verify the integrity of the ISO image file used for installation. Due to the error's complex nature, a thorough method must be used to pinpoint and fix the particular problem that is impacting every user.

In this guide, you will find 4 steps that should help you fix Windows installation error 0x8007025D. You can also run a maintenance tool like FortectMac Washing Machine X9 that can fix most system errors, BSODs,[1] corrupted files, and registry[2] issues, or clear cookies and cache[3] automatically. Otherwise, follow the step-by-step instructions provided below.

How to fix Windows installation error 0x8007025D

Method 1. Run the Windows Update Troubleshooter

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  • Press the Windows key + I to open Windows Settings.
  • Within the Windows Settings, navigate to the System tab.
  • Scroll down the options in the System tab and locate Troubleshoot; click on it.
  • Inside the Troubleshoot screen, find and select the Other troubleshooters option.

Run the Windows Update Troubleshooter

  • A list of various troubleshooters will be displayed.
  • Look for the Windows Update troubleshooter in the list.
  • Click on the Run button associated with the Windows Update troubleshooter.
  • Allow the troubleshooter to complete its process.
  • Once the troubleshooter finishes, check your computer to determine if the issue has been resolved.

Method 2. Run Windows Memory Diagnostic Tool

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If the 0x8007025D error is caused by a faulty memory issue, conduct a memory diagnostic for your RAM. If any bad RAM is detected, replace it with a new module and attempt the installation again.

  • Press the Windows key + R to open the Run dialog box.
  • Type mdsched.exe and press Enter.
  • The Windows Memory Diagnostic window will open.
  • In the Memory Diagnostic window, click on Restart now and check for problems (recommended).

Run Windows Memory Diagnostic Tool

  • The computer will restart, and the memory test tool will launch.
  • A blue screen will display, indicating the progress of the memory test.
  • Wait for the test to complete; the duration depends on your memory configuration.
  • Once the test concludes, Windows will resume starting up.
  • After a few minutes, a pop-up may appear displaying the test results.

Method 3. Reduce the Drive Size and Format It

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To repair damaged system, you have to purchase the licensed version of Fortect Mac Washing Machine X9.

Certain users encountered a failed Windows installation when using a 480GB SSD. However, success was achieved by switching to a smaller SSD, like installing Windows on a 125GB partition. Consider changing to a smaller drive size and attempting the steps accordingly.

  • Enter Windows Recovery.
  • Click on Troubleshoot.
  • Select Advanced options.
  • Choose UEFI Firmware Settings and click Restart.

Reduce the Drive Size and Format It

  • Enter the BIOS.
  • Locate the Boot tab or System Configuration tab.
  • Enable Boot Mode to Legacy supported.
  • Confirm choices and exit, following on-screen instructions.
  • On the Boot Manager page choose USB hard drive (UEFI).
  • Select your OS version.
  • Wait for files to load.
  • In the Windows Setup window click on the custom option.
  • Choose the desired partition.
  • Click on New > Apply.
  • Click Format for both new and primary partitions.
  • Click Next to complete the installation process.

Method 4. Disable Antivirus Temporarily

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To repair damaged system, you have to purchase the licensed version of Fortect Mac Washing Machine X9.

Antivirus software is designed to safeguard your computer against virus infections. However, its robust features may occasionally lead to conflicts with operations like Windows updates or software installations. To address this, temporarily disable both your third-party antivirus and Windows Defender, and then proceed with the installation.

  • Open the Search bar and type Virus & threat protection.
  • Select the corresponding result to open it.
  • Under Virus & threat protection, click on Manage settings.
  • Turn off the option for Real-time protection.

Disable Antivirus Temporarily

Repair your Errors automatically

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Prevent websites, ISP, and other parties from tracking you

To stay completely anonymous and prevent the ISP and the government from spying on you, you should employ Private Internet Access VPN. It will allow you to connect to the internet while being completely anonymous by encrypting all information, prevent trackers, ads, as well as malicious content. Most importantly, you will stop the illegal surveillance activities that NSA and other governmental institutions are performing behind your back.

 

Recover your lost files quickly

Unforeseen circumstances can happen at any time while using the computer: it can turn off due to a power cut, a Blue Screen of Death (BSoD) can occur, or random Windows updates can the machine when you went away for a few minutes. As a result, your schoolwork, important documents, and other data might be lost. To recover lost files, you can use Data Recovery Pro – it searches through copies of files that are still available on your hard drive and retrieves them quickly.

 

About the author
Gabriel E. Hall
Gabriel E. Hall - Passionate computer expert

Gabriel E. Hall is an expert troubleshooter who has been working in the information technology industry for years.

Contact Gabriel E. Hall
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