15 Ways to Fix ISDone.dll Error when Installing Games in Windows 10/11


Experiencing an isdone.dll error during your game installation can be a major roadblock to fun. This common issue often occurs on Windows 10/11 systems when trying to install or run games. From breaking down causes of the isdone.dll error, providing step-by-step solutions, to checking your game’s system requirements, this article will serve as your comprehensive guide through the maze.

Let’s dive into transforming that frustrating gameplay experience into smooth sailing!

Causes of the isdone. dll or unarc.dll Error

The isdone.dll error can occur due to various reasons such as insufficient permissions, compatibility issues, high priority settings, system file and image errors, virtual memory allocation problems, missing Visual C++ redistributables, incorrect registration of the referenced isdone.dll file, antivirus interference, clean booting issues, hard drive space limitations, RAM memory errors, and hard disk errors.

Insufficient permissions

This often occurs when you attempt to install large game files on your PC but lack the necessary access rights needed for such a process.

The nature and scale of these installations necessitate elevated privileges, which without them may result in installation errors, particularly ones associated with the Isdone.dll file. To prevent this issue, ensure that you’re running your installer or software as an administrator to grant it sufficient permissions.

Still having troubles? Maybe consider exploring other potential causes like virtual memory shortages or corrupted system files.

Compatibility issues

Windows cuts across both hardware and software aspects, meaning your computer’s operating system might be incompatible with the game you’re trying to install or run, hence the appearance of this error message.

For instance, attempting to install a modern game on a dated Windows OS such as XP or Vista can result in an isdone.dll error due to compatibility disturbances.

Additionally, your PC’s architecture could also play a part in causing these compatibility issues. A clear example involves executing 64-bit games on 32-bit systems – it generates conflict leading by extension to an isdone.dll error.

Therefore it’s crucial that before installing any game file on your PC, always check its system requirements against your computer’s specifications to ensure they gel seamlessly.

High priority settings

While not a direct cause, these settings can impose stress on your system’s resources – specifically, RAM and hard disk space – which can inadvertently contribute to occurrences of this troublesome error.

For example, running multiple high-priority applications concurrently could lead to inadequate virtual memory allocation or insufficient storage, thereby triggering the isdone.dll error. Furthermore, excessive tasks with high priority might overload the operating system resulting in corrupted DLL files or even system crashes due to resource exhaustion.

It’s vital then for users encountering the Isdonedll error causes often consider examining their high priority settings as part of their troubleshooting approach.

System file and image errors

When these errors occur, it can prevent the game installation process from completing successfully. To fix this issue, you may need to run system file scans and image scans to identify any corrupted files or images that are causing the error.

Resolving these system file and image errors will help ensure a smooth installation process for your games on Windows. Additionally, using a dedicated DLL fixer like FORTECT can also help in resolving these system file and image errors efficiently.

Virtual memory allocation

Virtual memory refers to a portion of your computer’s hard drive space that is used as an extension of your computer’s physical RAM.

When running resource-intensive programs, such as games, insufficient RAM may lead to this error. Expanding the paging filing can increase the amount of virtual memory available for your system, potentially resolving issues related to insufficient RAM.

By increasing virtual memory allocation, you provide your computer with additional resources it needs to run smoothly and prevent errors like the Isdone.dll error from occurring.

Missing Visual C++ redistributables

Missing Visual C++ redistributables can be a common cause of the isdone.dll error. These redistributables are necessary software components that some programs rely on to function properly. If they are not installed on your system or if they become corrupted, you may experience issues like the isdone.dll error.

To fix this problem, it’s important to check for the presence of Visual C++ redistributables and install any that are missing or corrupted. This can help resolve the isdone.dll error and ensure that your programs run smoothly without any runtime errors or dependency issues.

Installing these required Visual C++ redistributables can make a significant difference in troubleshooting the isdone.dll error. By ensuring that all necessary software components are present and functioning correctly, you can optimize your system’s performance and avoid installation errors caused by missing or corrupted files.

Referenced isdone.dll file registration

This error can occur when the DLL file, which is responsible for handling installation processes, becomes corrupted or improperly registered.

By re-registering the referenced isdone.dll file, you can help resolve this issue and ensure smoother installations in the future. It’s a straightforward step that involves using command prompt to register the DLL file again.

This process helps refresh its functionality and resolve any underlying registration issues that may be causing the error message to appear.

RAM memory errors

When your computer’s RAM becomes faulty or develops issues, it can lead to various problems, including the isdone.dll error. It is important to understand that faulty RAM memory can trigger this error and cause issues during game installation or other applications.

By addressing any RAM memory problems, you can effectively resolve the isdone.dll error and prevent it from occurring in the future. Increasing virtual memory allocation, running system file scans, and troubleshooting any faulty RAM can all help in resolving this error effectively.

Methods to Fix isdone.dll Error in Windows 10 / 11

To fix the isdone.dll error, you can run the game’s installer with admin rights, try running it in compatibility mode, set the game’s setup wizard at high priority, conduct system file and image scans, increase virtual memory allocation, install any missing Visual C++ redistributables, re-register the referenced isdone.dll file, temporarily switch off your PC’s antivirus shield, clean boot the Windows PC or utilize a third-party DLL fixer.

1. Run the game’s installer with admin rights in Safe Mode

To fix the isdone.dll error, one of the recommended methods is to run the game’s installer with administrative rights. This ensures that the installation process has all the necessary permissions to access and modify system files. Here’s how you can do it:

  1. Right – click on the game’s installer file.
  2. From the context menu, select “Run as administrator.”
  3. If prompted by User Account Control (UAC), click “Yes” to grant permission.
  4. Follow the on – screen instructions to proceed with the installation.

2. Run the game’s installer in compatibility mode

This can help resolve compatibility issues between the game and your PC’s operating system.

  1. Right – click on the game’s installer file.
  2. Select “Properties” from the drop – down menu.
  3. Navigate to the “Compatibility” tab.
  4. Check the box that says “Run this program in compatibility mode for: “
  5. Choose an earlier version of Windows from the drop – down menu.
  6. Click “Apply” and then “OK.”

3. Set the game’s setup wizard at high priority

To ensure a smooth installation process and minimize the chances of encountering the isdone.dll error, you can set the game’s setup wizard at high priority. This will allocate more system resources to the installation process and prioritize it over other background tasks. Here’s how you can do it:

  1. Launch the game’s installer by double – clicking on it.
  2. Open the Task Manager by pressing Ctrl + Shift + Esc or right – clicking on the taskbar and selecting “Task Manager.”
  3. In the Task Manager window, navigate to the “Processes” tab.
  4. Locate the game’s setup wizard process in the list. It is usually named after the game or has a similar name.
  5. Right – click on the setup wizard process and hover your cursor over “Set Priority.”
  6. Choose “High” from the sub – menu options.

4. Run system file scan (SFC) and DISM scan

These scans can help identify and repair corrupted system files that may be causing the error. Here are the steps you can follow:

  1. Open the Command Prompt as an administrator by right – clicking on the Start button and selecting “Command Prompt (Admin).”
  2. In the Command Prompt window, type “sfc /scannow” (without quotes) and press Enter. This command will initiate a scan of all protected system files on your computer.
  3. Wait for the scan to complete. The scanning process may take some time depending on your system’s speed and the number of files being scanned.
  4. Once the scan is finished, you will receive a message indicating whether any corrupt system files were found and repaired.
  5. If any errors are detected and repaired during this process, restart your computer and check if the isdone.dll error persists.

Run a DISM Scan

  1. Open Command Prompt as an administrator again.
  2. Type “DISM /Online /Cleanup – Image /RestoreHealth” (without quotes) and press Enter. This command will start the image scan and repair process.
  3. Allow the scan to complete without interrupting or shutting down your computer.
  4. After completion, restart your computer once again and check if the isdone.dll error has been resolved.

5. Increase Windows page file or virtual memory allocation

By increasing the amount of virtual memory or page file, you can provide your system with additional resources to handle demanding tasks and prevent memory-related errors. Here are some steps to help you increase the virtual memory allocation:

  1. Open the Control Panel on your Windows PC.
  2. Click on “System” or “System and Security” (depending on your version of Windows).
  3. Choose “Advanced system settings” from the left – hand menu.
  4. In the System Properties window, go to the “Advanced” tab.
  5. Under the Performance section, click on “Settings”.
  6. In the Performance Options window, navigate to the “Advanced” tab again.
  7. Under the Virtual Memory section, click on “Change”.
  8. Uncheck the option that says “Automatically manage paging file size for all drives”.
  9. Select your system drive (usually labeled as C: ) and choose “Custom size”.
  10. Enter a higher value in both the Initial size (MB) and Maximum size (MB) fields (e.g., 2048 MB – 4096 MB).
  11. Click on “Set”, then click on “OK” to save the changes.

6. Install any missing Visual C++ redistributables

These redistributables are necessary for certain programs and games to run smoothly on your computer. By installing them, you can address any compatibility issues that may be causing the isdone.dll error.

  1. Visit the official Microsoft website or trusted software repositories.
  2. Search for the specific version of Visual C++ redistributable that is required by the program or game generating the isdone.dll error.
  3. Download the redistributable package appropriate for your operating system (32-bit or 64-bit).
  4. Once downloaded, run the installer and follow the on – screen instructions to complete the installation process.
  5. After installation, restart your computer to ensure that the changes take effect.

7. Re-register the referenced isdone.dll file

To fix the isdone.dll error, you can try re-registering the referenced isdone.dll file. This process can help resolve any corruption or issues with the file. Here’s how you can do it:

  1. Press the Windows key + R to open the Run dialog box.
  2. Type “cmd” and press Enter to open the Command Prompt.
  3. In the Command Prompt window, type “regsvr32 isdone.dll” and press Enter.
  4. You should see a message indicating that the registration was successful.

8. Pause your PC’s antivirus protection

This can help resolve any conflicts or issues that may be occurring during the game installation process. By disabling the antivirus temporarily, you allow the game installation to proceed without any interference. Here are some steps you can follow:

  1. Disable antivirus software:
  • Turn off your antivirus shield.
  • Pause or deactivate your antivirus protection temporarily.
  • Stop your antivirus from running.
  • Suspend the antivirus shield for a short period.
  • Shut down the antivirus program to prevent it from interfering with the game installation process.
  • Temporarily block the antivirus to allow the game setup wizard to run smoothly.

9. Clean boot the Windows PC

This process helps identify any conflicting programs or startup services that may be causing the error. Here’s how you can do it:

  1. Press the Windows key + R to open the Run dialog box.
  2. Type “msconfig” and press Enter to open the System Configuration window.
  3. In the General tab, select “Selective startup” and uncheck the box next to “Load startup items.”
  4. Go to the Services tab and check the box next to “Hide all Microsoft services.”
  5. Click on “Disable all” to disable all non – Microsoft services.
  6. Go to the Startup tab and click on “Open Task Manager.”
  7. In the Task Manager window, disable each startup item by selecting it and clicking on “Disable.”
  8. Close the Task Manager and go back to the System Configuration window.
  9. Click on “Apply” and then “OK” to save your changes.
  10. Restart your computer.

10. Use a third-party DLL app to replace both isdone.dll and unarc.dll files

One reliable option is FORTECT, a powerful DLL fixer and PC optimization tool that can scan your system for missing or corrupted DLL files and replace them accordingly. Here’s why using a third-party DLL fixer like FORTECT can help you resolve the isdone.dll error:

  • It provides an easy-to-use interface that allows you to quickly scan and repair DLL errors on your computer.
  • FORTECT has a vast database of DLL files, ensuring that it can detect and replace any missing or corrupted files related to the isdone.dll error.
  • It offers advanced features such as automatic updates and system backups, giving you peace of mind knowing that your computer is always protected.
  • FORTECT also includes additional optimization tools to improve overall system performance, helping prevent future issues.

11. Check Hard drive for errors

It’s essential to diagnose and troubleshoot any potential hard disk errors when trying to resolve the isdone.dll error. By checking your hard disk for errors and optimizing its space, you can prevent these errors from occurring in the first place.

If you’re experiencing difficulties extending partitions or managing your disks effectively, consider using a reliable partition manager like MiniTool Partition Wizard Free Edition that can help you easily extend partitions and increase your available hard drive space.

12. Checking the Game’s System Requirements

Verifying the game’s system requirements is an essential step to ensure a smooth gaming experience. Before diving into troubleshooting solutions, it’s crucial to make sure that your device meets the minimum requirements specified by the game developer.

This includes checking factors such as the amount of RAM, available hard drive space, and graphics card compatibility.

Insufficient RAM or HDD storage can often lead to the isdone.dll error when running games or applications. If your device doesn’t meet these requirements, you may need to consider upgrading your hardware or freeing up disk space by removing unnecessary files and programs.

13. Clean booting

By performing a clean boot, you can eliminate potential software conflicts by temporarily disabling all non-essential startup programs and services.

This allows you to pinpoint any background processes or third-party applications that could be interfering with the installation process. It’s an effective way to isolate the cause of the error and ensure a smooth installation of game files without any disruptions.

Keep in mind that clean booting is particularly useful for identifying conflicting programs or startup services that may be causing the isdone.dll error, helping you get back to gaming faster.

14. Check Hard disk space space

When you try to install a game or software, it requires a certain amount of storage capacity on your hard drive.

If your hard drive does not have enough free space, this can result in the isdone.dll error popping up during installation.

To prevent this issue, it’s crucial to ensure that you have sufficient disk space before installing any program or game. You can check your available storage by right-clicking on your hard drive and selecting “Properties.” If you find that there isn’t enough free space, consider deleting unnecessary files or moving them to an external storage device to create more room.

15. Antivirus interference

When installing a game, your antivirus software or Windows Defender Firewall might mistakenly flag certain files as potential threats and block their installation.

This obstruction can cause the isdone.dll error to occur. To resolve this issue, you can temporarily disable your antivirus software or Windows Defender Firewall while installing the game. If that doesn’t work, consider uninstalling any third-party antivirus programs you have installed, as they may also be causing conflicts with the game installation process.

Remember to re-enable your antivirus protection once the game has been successfully installed to ensure ongoing security for your system.

Troubleshooting the isdone. dll Error in Clean Boot

If you’re encountering the isdone.dll error during installation, performing a clean boot on your Windows PC can help troubleshoot and solve the issue. Here are the steps to follow:


  1. Press the Windows Key + R to open the Run dialog box.
  2. Type “msconfig” and hit Enter to open the System Configuration window.
  3. In the General tab, select “Selective startup” and uncheck the box next to “Load startup items.”
  4. Go to the Services tab and check the box next to “Hide all Microsoft services.”
  5. Click on “Disable all” to disable all non – Microsoft services.
  6. Go to the Startup tab and click on “Open Task Manager.”
  7. In Task Manager, select each startup item and click on “Disable.”
  8. Close Task Manager and go back to the System Configuration window.
  9. Click on Apply and then OK to save changes.
  10. Restart your computer.


In conclusion, the isdone.dll error can be a frustrating obstacle when installing or running games on Windows. However, with the right troubleshooting methods and tools like FORTECT DLL fixer, it is possible to resolve this error quickly and efficiently.

By following the outlined steps such as checking system requirements, performing system file scans, increasing virtual memory allocation, and disabling antivirus software temporarily, users can overcome the isdone.dll error and enjoy seamless gaming experiences.

Don’t let this error hold you back from your gaming adventures; take action today and get back in the game!

Also See: Fix Roblox Error Code 403: 11 Proven Ways


What is the ISDone.dll Error?

The ISDone.dll Error is a common issue that occurs when installing games on Windows 10 or 11. It’s usually caused by missing or corrupted DLL files, system file issues, or virtual memory problems.

What causes the ISDone.dll Error?

The ISDone.dll Error can be caused by various factors, such as:

  • Missing or corrupted DLL files
  • System file issues
  • Virtual memory problems
  • Corrupt installation files
  • Hardware issues, such as a failing hard drive
  • Antivirus software or Windows Defender Firewall

How do I fix the ISDone.dll Error?

There are several ways to fix the ISDone.dll Error:

  1. Check your hard drive for errors using CHKDSK or a third-party tool.
  2. Install the game in Safe Mode with Networking.
  3. Increase the amount of virtual memory by adjusting the Windows Page File or Virtual Memory settings.
  4. Scan and repair any corrupt system files using DISM or SFC.
  5. Make sure your hardware is functioning properly, especially your hard disk.
  6. Temporarily disable your antivirus or Windows Defender Firewall.
  7. Re-register the ISDone.dll file or update your DirectX files.
  8. Uninstall and reinstall the game.

How can I check my hard disk for errors?

You can check your hard disk for errors by using CHKDSK or a third-party tool such as CrystalDiskInfo to check if it is failing.

Can I install the game in Safe Mode?

Yes, you can try installing the game in Safe Mode with Networking. This can help in case any third-party software or system processes are interfering with the installation.

How can I fix Virtual Memory problems?

You can fix virtual memory problems by adjusting the Windows Page File or Virtual Memory settings. Increase the amount of virtual memory to allow for more data that your computer’s RAM can’t hold.

What should I do if my computer cannot read the installation archive?

If your computer cannot read the installation archive, it’s likely corrupted. Download the archive and try again.

I am a computer engineer holding a bachelor's degree in Computer Science, complemented by a Master's in Business Administration from University of Strathclyde, Scotland. I currently work as a Senior IT Consultant in Melbourne, Australia. With over 15 years of...