Best DLL Repair Tool for PC/Laptop to Fix All DLL Errors

4DDiG DLL Fixer

4DDiG DLL Fixer

  -  18.11 MB  -  Demo
  • Latest Version

    4DDiG DLL Fixer 1.0.0 LATEST

  • Review by

    Michael Reynolds

  • Operating System

    Windows 7 / Windows 8 / Windows 10 / Windows 11

  • User Rating

    Click to vote
  • Author / Product

    Tenorshare / External Link

  • Filename


  • MD5 Checksum


4DDiG DLL Fixer is a highly effective lightweight utility for Windows PCs that can detect DLL errors that may cause various app malfunctions. Built from the ground up to be as easy to use as possible, this reliable tool can not only quickly scan modern Windows PCs for corrupted, missing, and misbehaving DLL archives, but can also replace them with fully functional files and restore functionality of the apps that depend on them (including DirectX subsystem).

4DDiG DLL Fixer Screenshot 1

Its capabilities even cover repairing DLL files that are necessary for a safe and stable Windows boot sequence, enabling users to fully regain control over their home, school, or work PC.

In early 2024, developers of this app from the 4DDiG (creators of many useful Windows PC utilities such as 4DDiG Duplicate File Deleter and 4DDiG File Repair) are promoting the ability to auto-repair over 7 thousand DLL issues!

4DDiG DLL Fixer for PC is distributed online as an automated installer that can be easily deployed not only on modern Windows 10/11 desktop and laptop PCs but also on legacy OS versions such as Windows 8.1, 8, and even Windows 7!

  • DLL Repair – Easily fix 7,000+ DLL issues that plague Windows apps, services, and boot sequences.
  • One Click Operation – Scan, identify and replace DLL files automatically.
  • Repair DirectX Errors – Enable your PC to regain the ability to run apps that rely on DirectX.
  • Fix various Runtime Library Errors – Enable reliable running of local apps.
  • Streamlined User Interface – Take full control over fixing your Windows PC.
  • Flexible Pricing Plans – From monthly to lifetime premium licenses, this app got you covered.
Installation and Setup

To get this app up and running on any modern Windows PC, users simply must download the installer app either from the official website or secure FileHorse servers. The automated installer sequence requires users to only follow a few simple on-screen instructions. With that done, the app can be started.

4DDiG DLL Fixer Screenshot 2

How to Use

The app promotes both full and partial scans, focused on all main subsystems this tool can repair – DLL, Runtime Library, and DirectX. Users are highly recommended to first perform a full scan, which can identify all suspicious files and offer a one-click solution to download replacements from the extensive DLL Database. This online-hosted DLL library holds only verified and secure files.

4DDiG DLL Fixer Screenshot 3

This entire procedure can be done in three steps – clicking on the Full Scan button (found in the main Full Check tab), clicking on the “Repair” button, and waiting a bit for all files to be downloaded and placed in the right position.
User Interface

The main dashboard of this app features a highly streamlined interface that promotes easy discovery of all its tools. The core navigation is done via five main tabs located on the left side of the dashboard (Full Check, Runtime Library Repair, DirectX Repair, DLL Repair, and System File Download).

4DDiG DLL Fixer Screenshot 4

The top right corner of the app is home to the Preferences section, as well as the Personal Support tool showcased in the form of an “audio headset” icon.


What is 4DDiG DLL Fixer?
It is an all-in-one tool that can quickly and reliably resolve various DLL-related issues that are causing Windows PC apps to malfunction.

Is it safe?
Yes, this is a reliable and safe app created by a security-minded development team.

What is the success rate of the app?
Developers promote up to a 99% success rate for DLL-related fixes.

What Windows OS versions are supported?
Windows 7, 8, 8.1, 10 and 11 (both 64-bit and 32-bit).


This premium app can be downloaded and tested for FREE, but the ability to download and replace malfunctioning DLL files is only available with a premium license. Here are all the offered plans:
  • Monthly Plan: $13.95 for one PC.
  • Yearly Plan: $24.95 for one PC, $79.95 for ten PCs, and $299 for an unlimited number of PCs.
  • Lifetime License: $45.95 for one PC.
System Requirements

This lightweight app can easily run on all Windows PCs that meet the requirements for the supported OS version (Windows 7 and above).

  • All-in-One tool for fixing DLL issues.
  • Ability to fix Runtime Library and DirectX errors.
  • Streamlined user interface.
  • Automatic DLL downloads from a secure cloud server.
  • Ability to manage more than one PC.
  • No free tier of use.
  • Most premium tiers provide licenses only for one PC.

4DDiG DLL Fixer is an easy-to-use tool for identifying misbehaving DLL and system files, enabling Windows PC users of all knowledge levels to fix them quickly and reliably with one click of a button. Featuring a powerful scan engine and access to a comprehensive cloud library of DLL files, this premium app can fix over 7 thousand issues. However, users should be aware that the free version of this app can only diagnose problems, requiring a premium license to fix detected issues.

  • 4DDiG DLL Fixer 1.0.0 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    4DDiG DLL Fixer 1.0.0 Screenshot 1
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